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7334abb4a4292b369af8ecbcb18980f127cbc558
FluffyFu/UCSD_Algorithms_Course_1
/week3_greedy_algorithms/5_collecting_signatures/covering_segments.py
1,115
4.3125
4
# Uses python3 import sys from collections import namedtuple Segment = namedtuple('Segment', 'start end') def optimal_points(segments): """ Given a list of intervals (defined by integers). Find the minimum number of points, such that each segment at least contains one point. Args: segments (list of namedtuples): a list of [a_i, b_i] intervals, both of them are integers and a_i <= b_i Returns: a list of points that fulfills the requirement. """ points = [] sorted_segments = sorted(segments, key=lambda x: x.start) end = sorted_segments[0].end for current in sorted_segments: if current.start > end: points.append(end) end = current.end elif current.end < end: end = current.end points.append(end) return points if __name__ == '__main__': input = sys.stdin.read() n, *data = map(int, input.split()) segments = list(map(lambda x: Segment( x[0], x[1]), zip(data[::2], data[1::2]))) points = optimal_points(segments) print(len(points)) print(*points)
true
b85f45db7324fe4acbb6beb920cd38071e01da91
FluffyFu/UCSD_Algorithms_Course_1
/week2_algorithmic_warmup/8_last_digit_of_the_sum_of_squares_of_fibonacci_numbers/fibonacci_sum_squares.py
972
4.28125
4
# Uses python3 from sys import stdin def fibonacci_sum_squares_naive(n): if n <= 1: return n previous = 0 current = 1 sum = 1 for _ in range(n - 1): previous, current = current, previous + current sum += current * current return sum % 10 def fibonacci_sum_squares(n): """ Calculate the last digit of F(0)^2 + F(1)^2 + ... + F(n)^2 Think the square as the area of a square. And from the geometry, we have the sum is equal to: F(n) * (F(n) + F(n-1)) We know the last digit of F(n) has periodicity of 60. Using this fact, the last digit can be calculated easily. """ if n % 60 == 0: return 0 n = n % 60 previous = 0 current = 1 for _ in range(n-1): previous, current = current, (previous + current) % 10 return (current * (previous + current)) % 10 if __name__ == '__main__': n = int(stdin.read()) print(fibonacci_sum_squares(n))
true
763c4122695531a8de231f3982bdfb070097cf87
AkshayLavhagale/SW_567_HW_01
/HW_01.py
1,585
4.3125
4
""" Name - Akshay Lavhagale HW 01: Testing triangle classification The function returns a string that specifies whether the triangle is scalene, isosceles, or equilateral, and whether it is a right triangle as well. """ def classify_triangle(a, b, c): # This function will tell us whether the triangle is scalene, isosceles, equilateral or right triangle try: a = float(a) b = float(b) c = float(c) except ValueError: raise ValueError("The input value is not number") else: [a, b, c] = sorted([a, b, c]) # sorting the values of a, b and c so it would always remain in order if (a + b < c and a + c < b and b + c < a) or (a or b or c) <= 0: """ The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side. Also none of the side should be equal to zero """ return "This is not a triangle" elif a ** 2 + b ** 2 == c ** 2: if a != b or a != c or b != c: return "Right and Scalene Triangle" if a == b or a == c or b == c: return "Isosceles and Right Triangle" elif a == b == c: return "Equilateral" if a == b or a == c or b == c: return "Isosceles" else: return "Scalene" def run_classify_triangle(a, b, c): # Invoke classify_triangle with the specified arguments and print the result print('classify_triangle(', a, ',', b, ',', c, ')=', classify_triangle(a, b, c), sep="")
true
7c7d3f029730d3c2a2653c367c9dbc45fb9bcd41
Mollocks/Day_at_the_py_shop
/Day1.py
435
4.28125
4
#!/usr/bin/env python3 #This is my first script :) print("Hello World!") x = "Passion fruit" y = x.upper() print(y) #Anything I want age = 49 txt = "My name is Hubert, and I am {}" print(txt.format(age)) """ This is Hubert and he is 49. You can mix strings only using the .format function """ #https://www.w3schools.com/python/python_strings_format.asp # https://www.w3schools.com/python/exercise.asp?filename=exercise_strings1
true
9470642703b3ac4a62e94276dcd3eb529b38fe31
Austin-Faulkner/Basic_General_Python_Practice
/OxfordComma.py
1,442
4.34375
4
# When writing out a list in English, one normally spearates # the items with commas. In addition, the word "and" is normally # included before the last item, unless the list only contains # one item. Consider the following four lists: # apples # apples and oranges # apples, oranges, and bananas # apples, oranges, bananas, and lemons # Write a function that takes a list of strings as # its only parameter. Your function should return a # string that contains all of the items in the list # formatted in the manner described above. Your function # should work correctly for lists of any length. If the # user does not enter any strings, it should print "<empty>". # Include a main program that prompts the user for items, calls # your function to create the properly formatted string, # and displays the result. def oxfordComma(lst): oCommas = "" if len(lst) == 0: return "<empty>" elif len(lst) == 1: return str(lst[0]) elif len(lst) > 1: for i in range(0, len(lst) - 1): oCommas += str(lst[i]) + ", " oCommas += "and " + str(lst[-1]) + "." return oCommas def main(): words = [] entry = str(input("Enter a series of words (hit 'return' to discontinue): ")) while entry != "": words.append(entry) entry = str(input("Enter a series of words (hit 'return' to discontinue): ")) print(oxfordComma(words)) main()
true
7cea87bed8615753466b2cd60712e2c22ce34fb2
nurur/ReplaceFirstCharacter-R.vs.Python
/repFirstCharacter.py
613
4.53125
5
# Python script to change the case (lower or upper) of the first letter of a string # String a='circulating' print 'The string is:', a print '' #Method 1: splitting string into letters print 'Changing the first letter by splitting the string into letters' b=list(a) b[0] = b[0].upper() b=''.join(b) print b print ' ' # Method 2: using regular expression print 'Changing the first letter by using regular expression' import re rep = lambda f: f.group(1).upper() b = re.sub('\A([a-z])', rep, a) #using anchor token \A print b b = re.sub('^([a-z])', rep, a) #using anchor token ^ print b
true
bd5ac9ee6116ebe863436db0dcf969b525beec5e
noahjett/Algorithmic-Number-Theory
/Algorithmic Number Theory/Binary_Exponentiation.py
2,450
4.15625
4
# Author: Noah Jett # Date: 10/1/2018 # CS 370: Algorithmic Number Theory - Prof. Shallue # This program is an implementation of the binary exponentiation algorithm to solve a problem of form a**e % n in fewer steps # I referenced our classroom discussion and the python wiki for the Math.log2 method import math def main(): a,n = 2,3 for e in range(1,10): print("e ==: ", e) result = (PowerMod(a,e,n,1)) print("Answer: ", result) logTest = logbase2(e) print("2 * log base2(e) = ", logTest, "\n") def PowerMod(a,e,n,numSteps): # a ** e % n print("||", a,e,n, "||") if e < 1: print("Steps: ", numSteps) return (a) elif e % 2 == 0: # even case return (PowerMod(a, e/2, n, numSteps+1)**2)%n elif e % 2 != 0: # odd case return (a * PowerMod(a, e-1, n,numSteps+1) % n) # Takes input e, the exponent being calculated in powermod # Outputs 2*log base2(e) # I googled "python log base 2" library, and was directed (stackoverflow?) to the log2 function in the "math" library def logbase2(e): log = (math.log2(e))*2 return log main() """ This algorithm for binary exponentiation should theoretically take <= logbase2(e) *2 steps to solve. I tested this for exponents 1-100 for the equation 2**e % 3. The algorithm did not consistently take <= 2logbase2(e) steps until the exponent was >= 16. With the exceptions of 31 and 63 The exponents that solved in the least steps, around 25% fewer than 2logbase2(e) were: 16,24,32,34,36,48,64,72... There was a positive correlation between even numbers and fewer steps, and an even greater one between powers of 2 and fewer steps. Some exponents that took more steps, being only slightly better than the theoretical limit were: 19,21,23,31,47,79,95. Odd numbers and primes both seem to take more steps to solve Why is this the case? The first fifteen exponents exceed the theoretical upper bound. I suspect this is overhead from python or my specific code. However, it also makes sense that this algorithm will always take at least a few steps, so it might just not work under a certain number. It makes sense that odd numbers would be slightly slower. Algorithmically, the odd case is essentially the # of even stepe +1 Powers of 2 being faster probably has to do with having a base of 2; those numbers would divide perfectly. """
true
f14c4696cc8e4f2db90416bd8e4216a7319c3860
Quiver92/edX_Introduction-to-Python-Creating-Scalable-Robust-Interactive-Code
/Boolean_Operators/Task1.py
761
4.375
4
#Boolean Operators #Boolean values (True, False) # [ ] Use relational and/or arithmetic operators with the variables x and y to write: # 3 expressions that evaluate to True (i.e. x >= y) # 3 expressions that evaluate to False (i.e. x <= y) x = 84 y = 17 print(x >= y) print(x >= y and x >= y) print(x >= y or x >= y) print(x <= y) print(x <= y and x <= y) print(x <= y or x <= y) #Boolean operators (not, and, or) # [ ] Use the basic Boolean operators with the variables x and y to write: # 3 expressions that evaluate to True (i.e. not y) # 3 expressions that evaluate to False (i.e. x and y) x = True y = False print( x and not y ) print( x or not y ) print( y or not y ) print( not x and y) print( not x and x and y ) print( not y and x and y )
true
837bebc2d9fbed6fe2ab8443f09a30bce9554478
Quiver92/edX_Introduction-to-Python-Creating-Scalable-Robust-Interactive-Code
/File_System/Task_2.py
908
4.40625
4
import os.path # [ ] Write a program that prompts the user for a file or directory name # then prints a message verifying if it exists in the current working directory dir_name = input("Please provide a file or directory name: ") if(os.path.exists(dir_name)): print("Path exists") # Test to see if it's a file or directory if(os.path.isfile(dir_name)): print("It's a file") elif (os.path.isdir(dir_name)): print("It's a dir") else: print("Path doesn't exist") # [ ] Write a program to print the absolute path of all directories in "parent_dir" # HINTS: # 1) Verify you are inside "parent_dir" using os.getcwd() # 2) Use os.listdir() to get a list of files and directories in "parent_dir" # 3) Iterate over the elements of the list and print the absolute paths of all the directories dir_list = os.listdir() print(dir_list) for i in dir_list: print(os.path.abspath(i))
true
655bf45e09a32b1544b54c5c938b8f5430daf4e7
grimesj7913/cti110
/P3T1_AreaOfRectangles_JamesGrimes.py
733
4.34375
4
#A calculator for calculating two seperate areas of rectangles #September 11th 2018 #CTI-110 P3T1 - Areas of Rectangles #James Grimes # length1 = float(input("What is the length of the first rectangle?:")) width1 = float(input("What is the width of the first rectangle?:" )) area1 = float(length1 * width1) length2 = float(input("What is the length of the second rectangle?:")) width2 = float(input("What is the width of the second rectangle?:")) area2 = float(length2 * width2) if area1 > area2: print('Rectangle 1 has the greater area') else: if area2 > area1: print('Rectangle 2 has the greater area') else: print('Both are the same area') input("Press enter to close the program")
true
78c7fb57d30e08b0c7f0808c3272769d6f2a2726
elnieto/Python-Activities
/Coprime.py
1,342
4.125
4
#Elizabeth Nieto #09/20/19 #Honor Statement: I have not given or received any unauthorized assistance \ #on this assignment. #https://youtu.be/6rhgXRIZ6OA #HW 1 Part 2 def coprime(a,b): 'takes two numbers and returns whether or not they are are coprime' #check if the numbers are divisible by 2 or if both are 2 if (a % 2 != 0 and b % 2 != 0) or (a ==2 and b ==2): classification = 'Coprime' else: classification = 'Not Coprime' return classification def coprime_test_loop(): 'Asks users for two numbers then passes these numbers to function \ coprime which identifies the nuber as coprime or not and returns \ the classification for the user. After it asks the user if they would\ like to repeat the function.' #ask for user to enter two nums a2, b2 = input( 'Enter two numbers seperated by a space(e.g. 34 24) \ or enter "Stop Process" to end this process.').split() #base case to end recursion if a2 == 'Stop': return 'Process Stopped' else: a2 = int(float(a2)) b2 = int(float(b2)) #calls function coprime, format output, loop function result = coprime(a2,b2) print(a2, ' and ', b2, ' are ', result) return coprime_test_loop() #test code print(coprime_test_loop())
true
07079cd63c24d88847a4b4c6a6749c8c2dca2abb
AbhijeetSah/BasicPython
/DemoHiererchialInheritance.py
446
4.15625
4
#hiererchial Inheritance class Shape: def setValue(self, s): self.s=s class Square(Shape): def area(self): return self.s*self.s class Circle(Shape): def area(self): return 3.14*self.s*self.s sq= Square() s= int(input("Enter the side of square ")) sq.setValue(s) print("Area of square",sq.area()) cr= Circle() r= int(input("Enter the radius of circle ")) cr.setValue(r) print("Area of circle : ", cr.area())
true
7bf3778c0dd682739cec943e2f9550e01a517538
itssamuelrowe/arpya
/session5/names_loop.py
577
4.84375
5
# 0 1 2 3 names = [ "Arpya Roy", "Samuel Rowe", "Sreem Chowdhary", "Ayushmann Khurrana" ] for name in names: print(name) """ When you give a collection to a for loop, what Python does is create an iterator for the collection. So what is an iterator? In the context of a for loop, an iterator is a special object that takes each item in the collection and gives it to the for statement. """ # for variable in collection: # block # print("index 0 => " + names[0]) # print("index 1 => " + names[1]) # print("index 2 => " + names[2]) # print("index 3 => " + names[3])
true
3b32018a5f493a622d5aee4bd979813c15c7c86c
vanderzj/IT3038C
/Python/nameage.py
819
4.15625
4
import time start_time = time.time() #gets user's name and age print('What is your name?') myName = input() print('Hello ' + myName + '. That is a good name. How old are you?') myAge = input() #Gives different responses based on the user's age. if myAge < 13: print("Learning young, that's good.") elif myAge == 13: print("Teenager Detected") elif myAge > 13 and myAge <= 26: print("Now you're a double teenager!") elif myAge > 26 and myAge < 34: print("Getting older...") else: print("You're probably older than Python!") #prgmAge = time the program has been running prgmAge = int(time.time() - start_time) print(str(myAge) +"? That's funny, I'm only " + str(prgmAge) + " seconds old.") print(" I wish I was " + str(int(myAge) * 2) + " years old.") time.sleep(3) print("I'm tired. Goodnight!")
true
b598c4d34d7f60ad2a821efaed87e47d7ed16781
vanderzj/IT3038C
/Python/TKinter_Practice/buttons.py
1,002
4.53125
5
# Imports tkinter, which is a built-in Python module used to make GUIs. from tkinter import * # Creates the window that the content of our script will sit in. win = Tk() # This function is being set up to give the button below functionality with the (command=) arguement. # The Command function should be written as (command=x) instead of as (command=x()) like most other functions. If you include the parenthesies the function will run on program start by itself. def myClick(): lbl1 = Label(win, text="Button was clicked.") lbl1.pack() # Creates a button object. The arguements here are (<location of button>, <text shown on button>, <horizontal size of button>, <vertical size of button>) btn = Button(win, text="Click Me!", padx=50, pady=50, command=myClick) # Puts the button into win btn.pack() # The .mainloop() part of this command starts the window's loop. This is what allows the program to run. Clicking the "X" on the window created by this script ends the loop. win.mainloop()
true
1f030e2f733874480af9f92425566e9f593dfe34
ledbagholberton/holbertonschool-higher_level_programming
/0x07-python-test_driven_development/0-add_integer.py
605
4.375
4
#!/usr/bin/python3 def add_integer(a, b=98): """ Function that summ two numbers integer or float. Args: a: First parameter (integer or float) b: Second paramenter (integer of float) Returns: Summ of a & b """ if a is None or (type(a) is not int and type(a) is not float): raise TypeError("a must be an integer") elif type(a) is float: a = int(a) if type(b) is not int and type(b) is not float: raise TypeError("b must be an integer") elif type(b) is float: b = int(b) c = a + b return (c)
true
5b82dd7f7e00b9ed2a8ee39e194384eb32ccc3f0
green-fox-academy/MartonG11
/week-02/day-1/mile_to_km_converter.py
273
4.4375
4
# Write a program that asks for an integer that is a distance in kilometers, # then it converts that value to miles and prints it km = float(input('Put a kilometer to convert to miles: ')) factor = 0.621371192 miles = km * factor print("The distance in miles is: ", miles)
true
cc328013864be876f42b1b7c25117bc3ffcccb4a
green-fox-academy/MartonG11
/week-02/day-2/swap_elements.py
250
4.34375
4
# - Create a variable named `abc` # with the following content: `["first", "second", "third"]` # - Swap the first and the third element of `abc` abc = ["first", "second", "third"] def swap(x): x[0] , x[2] = x[2] , x[0] print(x) swap(abc)
true
210519003481bc2545f6a2dfeab8c81ec67df223
green-fox-academy/MartonG11
/week-03/day-3/rainbow_box_function.py
767
4.1875
4
from tkinter import * root = Tk() canvas = Canvas(root, width='300', height='300') canvas.pack() # create a square drawing function that takes 2 parameters: # the square size, and the fill color, # and draws a square of that size and color to the center of the canvas. # create a loop that fills the canvas with rainbow colored squares. size1 = 145 color1 = "red" size2 = 120 color2 = "yellow" size3 = 100 color3 = "green" size4 = 80 color4 = "blue" size5 = 60 color5 = "purple" def square_draw(x_size, x_color): canvas.create_rectangle(150-(x_size), 150-(x_size),150+(x_size), 150+(x_size), fill=x_color) square_draw(size1, color1) square_draw(size2, color2) square_draw(size3, color3) square_draw(size4, color4) square_draw(size5, color5) root.mainloop()
true
8b6d39bb03692cc8ff81dbfdd62d59ed51b3629f
green-fox-academy/MartonG11
/week-03/day-3/center_box_function.py
535
4.34375
4
from tkinter import * root = Tk() canvas = Canvas(root, width='300', height='300') canvas.pack() # create a square drawing function that takes 1 parameter: # the square size # and draws a square of that size to the center of the canvas. # draw 3 squares with that function. size1 = 130 size2 = 100 size3 = 50 def draw_square(square_size): canvas.create_rectangle(150-(square_size), 150-(square_size),150+(square_size), 150+(square_size), fill="green") draw_square(size1) draw_square(size2) draw_square(size3) root.mainloop()
true
b500ce44e4652624e0b5f94e19da756ad190e217
hkscy/algorithms
/Miscellaneous Algorithms/Palindrome Checker/palindrome.py
2,216
4.25
4
# Chris Hicks 2020 # # Based on Microsoft Technical Interview question: # "Given a string, write an algorithm that will determine if it is a palindrome" # Input: string of characters, Output: True (palindrome) False (palindrome) # # What is a palindrome? # - A sequence of characters which reads the same backward as forward # - Sentence-length palindromes may be written when allowances are made for # adjustments to capital letters, punctuation, and word dividers # # Some examples are "02022020":True , "Chris":False, , "Anna":True # "Step on no pets":True, "Lobster Stew":False # # Can I use libraries? if so re for regular expressions could be used # or methods and variables from string library and e.g. string.punctuation import string as strings import timeit examples = {"02022020":True , "Chris":False, "Anna":True, "Step on no pets":True, "Lobster Stew":False, " ":True, "":True} # In the permissive setting, return a string with no capitalisation or whitespace def permissive(string): string = string.casefold() # n comparisons string = string.replace(" ", "") # n comparisons return string # Simply check whether all of the "opposite" characters in string have # the same value. Wasteful since we're duplicating our effort. def basic_is_palindrome(string): return string == string[::-1] # Can we do better? We can compare just n//2 elements def fast_is_palindrome(string): # If string has odd length than ignore middle character n = len(string) if n%2 != 0: string = string[0:n//2]+string[n//2+1:] for idx in range(n//2): if string[idx] != string[-idx-1]: return False return True def main(): for example in examples: # If we want to be disregard punctuation and whitespace example_clean = permissive(example) if basic_is_palindrome(example_clean) == examples.get(example): print("Basic method PASS for example \"{}\"".format(example)) else: print("Basic method FAIL for example \"{}\"".format(example)) if fast_is_palindrome(example_clean) == examples.get(example): print("Fast method PASS for example \"{}\"".format(example)) else: print("Fast method FAIL for example \"{}\"".format(example)) print() if __name__ == "__main__": main()
true
f4891c92ba34699fe80a9d71f66a6ae13c39a75f
JosueOb/Taller1
/Ejercicios/Ejercicio4-6.py
1,577
4.15625
4
from tkinter import * root = Tk() v = IntVar() Label(root, text="""Choose a programming language:""", justify = LEFT, padx = 20).pack() Radiobutton(root, text="Python", padx = 20, variable=v, value=1).pack(anchor=W) Radiobutton(root, text="Perl", padx = 20, variable=v, value=2).pack(anchor=W) mainloop() root = Tk() v = IntVar() v.set(1) # initializing the choice, i.e. Python languages = [ ("Python",1), ("Perl",2), ("Java",3), ("C++",4), ("C",5) ] def ShowChoice(): print (v.get()) Label(root, text="""Choose your favourite programming language:""", justify = LEFT, padx = 20).pack() for txt, val in languages: Radiobutton(root, text=txt, padx = 30, variable=v, command=ShowChoice, value=val).pack(anchor=W) mainloop() root = Tk() v = IntVar() v.set(1) # initializing the choice, i.e. Python languages = [ ("Python",1), ("Perl",2), ("Java",3), ("C++",4), ("C",5) ] def ShowChoice(): print (v.get()) Label(root, text="""Escoja un lenguaje de programación:""", justify = LEFT, padx = 20).pack() for txt, val in languages: Radiobutton(root, text=txt, indicatoron =0, width = 20, padx = 20, variable=v, command=ShowChoice, value=val).pack(anchor=W) mainloop()
true
bffba3eb19fd92bfed2563216c3d7478a8b92fed
LitianZhou/Intro_Python
/ass_4.py
2,635
4.15625
4
# Part 1 while True: RATE = 1.03 while True: print("--------------------------------------") start_tuition = float(input("Please type in the starting tuition: ")) if start_tuition <= 25000 and start_tuition >= 5000: break else: print("The starting tuition should be between 5,000 and 25,000 inclusive, please enter a valid value.") tuition = start_tuition year = "year" for i in range(1,6): tuition = tuition*RATE print("In " + str(i) + " " + year + ", the tuition will be $" + format(tuition, ',.2f') + ".") year = "years" foo = input("To calculate with other start tuition, type *yes* to continue, otherwise the program ends: ") if(foo != "yes"): break # Part 2 print("\n_____________Part 2_______________") while True: print("-----------------------------------------") rate = 1 + float(input("Please input the increment rate per year (enter as decimals): ")) #input start_tuition and validation check while True: start_tuition = float(input("Please type in the starting tuition: ")) if start_tuition <= 25000 and start_tuition >= 5000: break else: print("ERROR: Starting tuition should be between 5,000 and 25,000 inclusive!") #input first year + validation check while True: try: first_year = int(input("Please enter the first year you are interested: ")) except ValueError: print("ERROR: Please input an integer!") continue else: if first_year < 1: print("ERROR: Please input a integer at least 1") else: break #input last year + validation check while True: try: last_year = int(input("Please enter the last year you are interested: ")) except ValueError: print("ERROR: Please input an integer!") continue else: if last_year < first_year: print("ERROR: Please input a integer greater than first year") else: break # calculate and print tuition = start_tuition year = "year" for i in range(1, last_year+1): tuition = tuition*rate if i >= first_year: print("In " + str(i) + " " + year + ", the tuition will be $" + format(tuition, ',.2f') + ".") year = "years" foo = input("To calculate with other tuition and rate, type *yes* to continue, otherwise the program ends: ") if(foo != "yes"): break
true
cd9812c4bce5cf9755e99f06cc75db716499f0e1
edek437/LPHW
/uy2.py
876
4.125
4
# understanding yield part 2 from random import sample def get_data(): """Return 3 random ints beetween 0 and 9""" return sample(range(10),3) def consume(): """Displays a running average across lists of integers sent to it""" running_sum=0 data_items_seen=0 while True: data=yield data_items_seen += len(data) running_sum += sum(data) print('The running average is {}'.format(running_sum / float(data_items_seen))) def produce(consumer): """Produces a set of values and forwards them to the pre-defined consumer function""" while True: data=get_data() print('Produced{}'.format(data)) consumer.send(data) yield #if __name__ == '__main__': consumer = consume() consumer.send(None) producer = produce(consumer) for _ in range(10): print('Producing...') next(producer)
true
3cdbde7f1435ef0fc65ab69b325fed08e1136216
cakmakok/pygorithms
/string_rotation.py
209
4.15625
4
def is_substring(word1, word2): return (word2 in word1) or (word1 in word2) def string_rotation(word1, word2): return is_substring(word2*2,word1) print(string_rotation("waterbottle","erbottlewat"))
true
df61bd0ca36e962e134772f6d7d50200c7a3a7aa
phuongnguyen-ucb/LearnPythonTheHardWay
/battleship.py
2,320
4.34375
4
from random import randint board = [] # Create a 5x5 board by making a list of 5 "0" and repeat it 5 times: for element in range(5): board.append(["O"] * 5) # To print each outer list of a big list. 1 outer list = 1 row: def print_board(board): for row in board: print " ".join(row) # to concatenate all the elements inside the list into one string => to make the board look pretty print "Let's play Battleship!" print_board(board) # display the board # Assign a random location (random row & column) for my ship. This location will be hidden: def random_row(board): return randint(0, len(board) - 1) def random_col(board): return randint(0, len(board[0]) - 1) ship_row = random_row(board) ship_col = random_col(board) #print ship_row #print ship_col # User can play 4 turns before game over (turn starts from 0 to 3): for turn in range(4): # Ask user to guess my ship's location: guess_row = int(raw_input("Guess Row: ")) guess_col = int(raw_input("Guess Column: ")) # A winning case: if guess_row == ship_row and guess_col == ship_col: # raw_input will return a string => have to make (guess_row & guess_col) become integer to compare with number print "Congratulations! You sunk my battleship!" break # to get out of a loop and stop a game if user wins # Wrong cases: else: # If user's guess is invalid or off the board: if guess_row > len(board)-1 or guess_col > len(board[0])-1: print "Oops, that's not even in the ocean." # If user already guessed a specific location: elif board[guess_row][guess_col] == "X": print "You guessed that one already." # If user guess it wrong: else: print "You missed my battleship!" board[guess_row][guess_col] = "X" # mark X on a location that is already guessed # Notify user when they play all 4 turns: if turn == 3: print "GAME OVER!!! Too bad you just lost your last chance :(. Try again :)" break # to end a game without displaying turn and a board # Display user's turn: if turn == 0: print "You've played ", turn + 1, "turn" else: print "You've played ", turn + 1, "turns" # Display the board again: print_board(board)
true
ac4ecdf8ffd9532f0254c6d848ba74a886122ed8
mvoecks/CSCI5448
/OO Project 2/Source Code/Feline.py
2,173
4.125
4
import abc from Animal import Animal from roamBehaviorAbstract import climbTree from roamBehaviorAbstract import randomAction ''' The roaming behavior for Felines can either be to climb a tree or to do a random action. Therefore we create two roamBehaviorAbstract variables, climbTree and randomAction that we will set appropriately in the subclasses for Feline. ''' climbBehavior = climbTree() randomBehavior = randomAction() ''' Create a abstract class Feline which extends Animal. This class sets the doRoam behavior to the fly class, and impliments the eat and sleep functions defined in the abstract Animal class ''' class Feline(Animal): __metaclass__ = abc.ABCMeta ''' Initializing a Feline object and set its name, type, and behavior in the superclass Animal ''' def __init__(self, name, type, behavior): super().__init__(name, type) super().setRoamBehavior(behavior) ''' All Felines sleep and eat the same, so initialize those function Here ''' def sleep(self): print(super().getType() + "-" + super().getName() +": Back to my natural state, Zzzzz.....") def eat(self): print(super().getType() + "-" + super().getName() +": Purrrr, some food. Don't mind if I do.") ''' Create a class for the cats, which are an extension of Felines. In this class we initialize a cat by giving it a name and defining its behavior, which is to do a random action. This also defines how cats make noise. ''' class Cat(Feline): def __init__(self, name): super().__init__(name, 'Cat', randomBehavior) def makeNoise(self): print(super().getType() + "-" + super().getName() +": Meh, I'm just a cat.") ''' Create a class for the lions, which are an extension of Felines. In This class we initialize a lion by givig it a name and defining its behavior, which is to climb a tree. This also defines how lions make noise ''' class Lion(Feline): def __init__(self, name): super().__init__(name, 'Lion', climbBehavior) def makeNoise(self): print(super().getType() + "-" + super().getName() +": ROAR! Behold the mighty lion!")
true
83424e65bc9b7240d3ff929a22884e2ebef578d3
asvkarthick/LearnPython
/GUI/tkinter/tkinter-label-02.py
620
4.25
4
#!/usr/bin/python3 # Author: Karthick Kumaran <asvkarthick@gmail.com> # Simple GUI Program with just a window and a label import tkinter as tk from tkinter import ttk # Create instance win = tk.Tk() # Set the title for the window win.title("Python GUI with a label") # Add a label label = ttk.Label(win, text = "Label in GUI") label.grid(column = 0, row = 0) def click_button(): button.configure(text = "Clicked") label.configure(foreground = 'red') label.configure(text = 'Button clicked') button = ttk.Button(win, text = "Click Here", command = click_button) button.grid(column = 1, row = 0) # Start the GUI win.mainloop()
true
ee3acb288c29099d6336e9d5fd0b7a54f71573fe
asvkarthick/LearnPython
/02-function/function-05.py
218
4.125
4
#!/usr/bin/python # Author: Karthick Kumaran <asvkarthick@gmail.com> # Function with variable number of arguments def print_args(*args): if len(args): for i in args: print(i); else: print('No arguments passed') print_args(1, 2, 3)
true
8fa01eb2322cd9c2d82e043aedd950a408c46901
optionalg/challenges-leetcode-interesting
/degree-of-an-array/test.py
2,851
4.15625
4
#!/usr/bin/env python ##------------------------------------------------------------------- ## @copyright 2017 brain.dennyzhang.com ## Licensed under MIT ## https://www.dennyzhang.com/wp-content/mit_license.txt ## ## File: test.py ## Author : Denny <http://brain.dennyzhang.com/contact> ## Tags: ## Description: ## https://leetcode.com/problems/degree-of-an-array/description/ ## ,----------- ## | Given a non-empty array of non-negative integers nums, the degree of this array is defined as the maximum frequency of any one of its elements. ## | ## | Your task is to find the smallest possible length of a (contiguous) subarray of nums, that has the same degree as nums. ## | ## | Example 1: ## | Input: [1, 2, 2, 3, 1] ## | Output: 2 ## | Explanation: ## | The input array has a degree of 2 because both elements 1 and 2 appear twice. ## | Of the subarrays that have the same degree: ## | [1, 2, 2, 3, 1], [1, 2, 2, 3], [2, 2, 3, 1], [1, 2, 2], [2, 2, 3], [2, 2] ## | The shortest length is 2. So return 2. ## | Example 2: ## | Input: [1,2,2,3,1,4,2] ## | Output: 6 ## | Note: ## | ## | nums.length will be between 1 and 50,000. ## | nums[i] will be an integer between 0 and 49,999. ## `----------- ## ## Basic Idea: ## Complexity: ## -- ## Created : <2017-10-16> ## Updated: Time-stamp: <2017-10-23 18:22:06> ##------------------------------------------------------------------- class Solution(object): def findShortestSubArray(self, nums): """ :type nums: List[int] :rtype: int """ # find the degree and digits digit_dict = {} for i in range(0, len(nums)): num = nums[i] if digit_dict.has_key(num) is False: digit_dict[num] = (1, [i]) else: (count, l) = digit_dict[num] l.append(i) digit_dict[num] = (count+1, l) degree = 0 for num in digit_dict.keys(): (count, _l) = digit_dict[num] if count > degree: degree = count min_length = 65535 degree_digits = [] for num in digit_dict.keys(): (count, l) = digit_dict[num] if count == degree: start_index = l[0] end_index = l[-1] length = end_index - start_index + 1 if length < min_length: min_length = length # print "degree: %d, degree_digits: %s" % (degree, degree_digits) # loop the example, only start from digits which are in the target list return min_length if __name__ == '__main__': s = Solution() print s.findShortestSubArray([1, 2, 2, 3, 1]) print s.findShortestSubArray([1,2,2,3,1,4,2]) ## File: test.py ends
true
e24f2c5e5688efbfc9a8e1c041765efc22fa0cc0
optionalg/challenges-leetcode-interesting
/reverse-words-in-a-string/test.py
1,323
4.28125
4
#!/usr/bin/env python ##------------------------------------------------------------------- ## @copyright 2017 brain.dennyzhang.com ## Licensed under MIT ## https://www.dennyzhang.com/wp-content/mit_license.txt ## ## File: test.py ## Author : Denny <http://brain.dennyzhang.com/contact> ## Tags: ## Description: ## https://leetcode.com/problems/reverse-words-in-a-string/description/ ## ,----------- ## | Given an input string, reverse the string word by word. ## | ## | For example, ## | Given s = "the sky is blue", ## | return "blue is sky the". ## | ## | Update (2015-02-12): ## | For C programmers: Try to solve it in-place in O(1) space. ## `----------- ## ## -- ## Created : <2017-10-16> ## Updated: Time-stamp: <2017-10-26 21:41:00> ##------------------------------------------------------------------- class Solution(object): def reverseWords(self, s): """ :type s: str :rtype: str """ ## Basic Idea: ## the sky is blue ## eulb si yks eht ## blue is sky the ## Complexity: Time O(n), Space O(1) # reverse s = s[::-1] res = [] for item in s.split(" "): if item == "": continue res.append(item[::-1]) return ' '.join(res)
true
37cc4a21931e88c5558809dfb756e01e01a92d10
brianpeterson28/Princeton_Python_SWD
/bep_exercises/chapter1.2/contcompinterest/contcompinterest.py
2,227
4.3125
4
''' Author: Brian Peterson | https://github.com/brianpeterson28 Creative Exercise 1.2.21 - Intro to Programming In Python ''' import math import decimal print("Calculates Future Value @ Continuously Compounded Rate.") def askForInterestRate(): while True: try: interestrate = float(input("Enter interest rate: ")) while (interestrate >= 1) or (interestrate < 0): print("Please enter the interest rate as a decimal greater than zero but less than one.") interestrate = float(input("Enter interest rate: ")) break except ValueError: print("That input is not valid.") print("Please enter the interest rate as a decimal greater than zero but less than one.") return interestrate def askForYears(): while True: try: years = int(input("Enter number of years: ")) while (years < 0) or (type(years) != type(1)): print("The number of years must be an integer greater than zero.") years = int(input("Enter number of years:")) break except ValueError: print("That is not a valid entry.") print("Please enter the number of years as a non-negative integer.") return years def askForPrincipal(): while True: try: principal = float(input("Enter amount of principal: ")) while principal <= 0: print("The principal amount must be greater than zero.") principal = float(input("Enter amount of principal: ")) break except ValueError: print("That is not a valid entry.") print("Please enter a principal amount that is greater than zero.") print("Also, please do not include any commas.") return principal def calculateFutureValue(interestrate, years, principal): futureValue = principal * (math.exp(interestrate * years)) return futureValue ''' Excellent article explaining how to use decimal package to do math with and round floating point numbers: https://pymotw.com/3/decimal/ ''' def displayResult(futurevalue): futurevalue = decimal.Decimal(futurevalue) print("The future value is ${:,.2f}.".format(futurevalue)) def main(): principal = askForPrincipal() years = askForYears() inerestRate = askForInterestRate() futurevalue = calculateFutureValue(inerestRate, years, principal) displayResult(futurevalue) if __name__ == "__main__": main()
true
ad8dd825f3f56a5773b4d0bb79f27a3738c13533
crishabhkumar/Python-Learning
/Assignments/Trailing Zeroes.py
299
4.15625
4
#find and return number of trailing 0s in n factorial #without calculation n factorial n = int(input("Please enter a number:")) def trailingZeros2(n): result = 0 power = 5 while(n >= power): result += n // power power *= 5 return result print(trailingZeros2(n))
true
60f2c7a1930e69268bd41975cc3778e545ee9100
sudhansom/python_sda
/python_fundamentals/10-functions/functions-exercise-01.py
306
4.3125
4
# write a function that returns the biggest of all the three given numbers def max_of_three(a, b, c): if a > b: if a > c: return a else: return c else: if b > c: return b else: return c print(max_of_three(3, 7, 3))
true
10f075ee5aff42884240b0a5070d649d3c71d972
sudhansom/python_sda
/python_fundamentals/06-basic-string-operations/strings-exercise.py
420
4.21875
4
# assigning a string value to a string of length more than 10 letters string = "hello" reminder = len(string) % 2 print(reminder) number_of_letters = 2 middle_index = int(len(string)/2) start_index = middle_index - number_of_letters end_index = middle_index + number_of_letters + reminder result = string[start_index:end_index] print(f"Result: {result}") # just for a prictice r = range(0, 20,2) print(r) print(r[:5])
true
8a21cc7dc1f16ae2715479dbc875d4c5e0696f6a
sudhansom/python_sda
/python_fundamentals/00-python-HomePractice/w3resource/conditions-statements-loops/problem43.py
386
4.28125
4
""" Write a Python program to create the multiplication table (from 1 to 10) of a number. Go to the editor Expected Output: Input a number: 6 6 x 1 = 6 6 x 2 = 12 6 x 3 = 18 6 x 4 = 24 6 x 5 = 30 6 x 6 = 36 6 x 7 = 42 6 x 8 = 48 6 x 9 = 54 6 x 10 = 60 """ user_input = int(input("Enter the number: ").strip()) for i in range(1, 11): print(f"{user_input} x {i} = {user_input * i}")
true
8c8ba8bbd6230a3c045971542159acb1ef584596
dlu270/A-First-Look-at-Iteration
/Problem 3-DL.py
683
4.65625
5
#Daniel Lu #08/08/2020 #This program asks the user for the number of sides of a shape, the length of sides and the color. It then draws the shape and colors it. import turtle wn = turtle.Screen() bob = turtle.Turtle() sides = input ("What are the number of sides of the polygon?: ") length = input ("What is the length of the sides of the polygon?: ") line_color = input ("What is the line color of the polygon?: ") fill_color = input ("What is the fill color of the polygon?: ") bob.color(line_color) bob.fillcolor(fill_color) bob.begin_fill() for i in range (int(sides)): bob.forward (int(length)) bob.left (int(360) / int(sides)) bob.end_fill()
true
7ab66c17162421433ec712ebb1bbad0c0afbdd0b
Dianajarenga/PythonClass
/PythonClass/student.py
1,075
4.59375
5
class Student: school="Akirachix" #to create a class use a class keyword #start the class name with a capital letter.if it has more than one letter capitalize each word #do not include spaces #many modules in a directory form a package #when you save your code oin a .py file its called a module #to import a class from any module use . notation eg-from module import class name (import convection) standard libraries,built in modules. #object creation from class instance creation #def__init__(Self,name,age) creating a class contructor self is refers to instance of class def __init__(self,name,age,unit): self.name=name#assignning variables to class instance self.age=age self.unit=unit def speak(self): return f"Hello my name is {self.name} and I am {self.age} years old" def learn(self): return f"I am studying {self.unit} in{self.school}" #create class Car : give it 4 attributes(),behaviour()3, #create class Dog attributes(3) ,method(1) #bank.py class Account(3)method(2)
true
6096598f70d386090efba0a31f1be8a6a483a39e
johnashu/Various-Sorting-and-SEarching-Algorithms
/search/interpolation.py
1,970
4.1875
4
""" Interpolation search is an improved variant of binary search. This search algorithm works on the probing position of the required value. For this algorithm to work properly, the data collection should be in a sorted form and equally distributed. Binary search has a huge advantage of time complexity over linear search. Linear search has worst-case complexity of Ο(n) whereas binary search has Ο(log n). Step 1 − Start searching data from middle of the list. Step 2 − If it is a match, return the index of the item, and exit. Step 3 − If it is not a match, probe position. Step 4 − Divide the list using probing formula and find the new midle. Step 5 − If data is greater than middle, search in higher sub-list. Step 6 − If data is smaller than middle, search in lower sub-list. Step 7 − Repeat until match. """ a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20] d = {'0': '0', '1': '1', '2': '2', '3': '3', '4': '4', '5': '5', '6': '6', '7': '7', '8': '8', '9': '9', '10': 'A', '11': 'B', '12': 'C', '13': 'D', '14': 'E', '15': 'F'} x = 0 def maf_interpolation(array, value): """ In this algorithm, we want to find whether element x belongs to a set of numbers stored in an array numbers[]. Where l and r represent the left and right index of a sub-array in which searching operation should be performed. """ err = "Not Found" lo = 0 mid = -1 hi = len(array) - 1 while value != mid: if lo == hi or array[lo] == a[hi]: print("No Dice! Target NOT Found!") break mid = lo + ((hi - lo) // (array[hi] - array[lo])) * (value - array[lo]) if array[mid] == value: return print("Success, Found in Index: ", mid) break elif array[mid] < value: lo = mid + 1 elif a[mid] > value: hi = mid - 1 maf_interpolation(a, x)
true
11a2948ed09d97d32565e20dcb6ef0f7158a879f
zosopick/mawpy
/Chapters 1 to 5/Chapter 1/1-5 Turtle spiral.py
498
4.28125
4
''' Excersise 1-5: Turtle spiral Make a funciton to draw 60 squares, turning 5 degrees after each square and making each successive square bigger. Start at a length of 5 and increment 5 units every square. ''' from turtle import * shape('turtle') speed(10) length=5 def turtle_spiral(): length=5 for i in range(250): for j in range(4): forward(length) right(90) right(10) length+=5 turtle_spiral()
true
2e432eac8fbcb96bdd568ac0ebb83f08761bc912
zosopick/mawpy
/Chapters 1 to 5/Chapter 5/Exercise__5_1_A_spin_cycle/Exercise__5_1_A_spin_cycle.pyde
771
4.1875
4
''' Exercise 5-1: A spin cycle Create a circle of equilateral triangles in a processing sketch and rotate them using the rotate() function ''' t=0 def setup(): size(1000,1000) rectMode(CORNERS) #This keeps the squares rotating around the center #also, one can use CORNER or CORNERS def draw(): global t background(255) translate(width/2,height/2) rotate(radians(t)) for i in range(12): pushMatrix() translate(200,0) rotate(radians(5*t))#If we add this, the squares rotate faster tri(50) popMatrix() rotate(radians(360/12)) t+=1 def tri(length): triangle(0,-length, -length*sqrt(3)/2, length/2, length*sqrt(3)/2, length/2)
true
bf73c880b2704f1ef37080e4bb18ef0777d6ff5a
vighneshdeepweb/Turtle-corona
/Turtle-Covid/covid.py
676
4.125
4
import turtle #create a screen screen = turtle.Screen() #create a drawer for drawing drawer = turtle.Turtle() #Set the background color of the screen screen.bgcolor("black") #For set a Background,color,speed,pensize and color of the drawer drawer.pencolor("darkgreen") drawer.pensize(3) drawer1 = 0 drawer2 = 0 drawer.speed(0) drawer.goto(0, 200) drawer.pendown() #Create while loop for drawing Corona Virus Shape. while True: drawer.forward(drawer1) drawer.right(drawer2) drawer1 += 3 drawer2 += 1 if drawer2 == 210: break drawer.ht() # For Holding the main Screen screen.mainloop()
true
d10975f40f51444b69afcee04b30a0347faf0da5
veldc/basics
/labs/02_basic_datatypes/02_04_temp.py
402
4.34375
4
''' Fahrenheit to Celsius: Write the necessary code to read a degree in Fahrenheit from the console then convert it to Celsius and print it to the console. C = (F - 32) * (5 / 9) Output should read like - "81.32 degrees fahrenheit = 27.4 degrees celsius" ''' Farh = float(input("Enter degree Farh: ")) Celsius = (Farh-32)*(5/9) print (Farh, "degress fahrenheid = ",Celsius, "degress celsius")
true
776fa8276987922284cac8b4a28c8e974242f0ee
veldc/basics
/labs/02_basic_datatypes/02_05_convert.py
799
4.40625
4
''' Demonstrate how to: 1) Convert an int to a float 2) Convert a float to an int 3) Perform floor division using a float and an int. 4) Use two user inputted values to perform multiplication. Take note of what information is lost when some conversions take place. ''' # int to float Num = 8 Div = float(Num) print(Div) # float to int Num = 8 Div = 10 devision = int(Num/Div) print(devision) #Floor division NumInt = 30 NumFl = 9.3 print(NumInt//NumFl) '''#user input int InputUser1 = int(input("Enter number: ")) InputUser2 = int(input("Enter another number: ")) Multi=(InputUser1*InputUser2) print(Multi)''' #user input float InputUser1 = float(input("Enter number: ")) InputUser2 = float(input("Enter another number: ")) Multi=int((InputUser1*InputUser2)) print(Multi)
true
764e49079883e2419c2ed66de6d3b883f3074b10
VanessaVanG/number_game
/racecar.py
1,536
4.3125
4
'''OK, let's combine everything we've done so far into one challenge! First, create a class named RaceCar. In the __init__ for the class, take arguments for color and fuel_remaining. Be sure to set these as attributes on the instance. Also, use setattr to take any other keyword arguments that come in.''' class RaceCar: def __init__(self, color, fuel_remaining, laps=0, **kwargs): self.color = color self.fuel_remaining = fuel_remaining self.laps = laps for key, value in kwargs.items(): setattr(self, key, value) '''OK, now let's add a method named run_lap. It'll take a length argument. It should reduce the fuel_remaining attribute by length multiplied by 0.125. Oh, and add a laps attribute to the class, set to 0, and increment it each time the run_lap method is called.''' def run_lap(self, length): self.fuel_remaining -= (length * 0.125) self.laps += 1 '''Great! One last thing. In Python, attributes defined on the class, but not an instance, are universal. So if you change the value of the attribute, any instance that doesn't have it set explicitly will have its value changed, too! For example, right now, if we made a RaceCar instance named red_car, then did RaceCar.laps = 10, red_car.laps would be 10! To prevent this, be sure to set the laps attribute inside of your __init__ method (it doesn't have to be a keyword argument, though). If you already did it, just hit that "run" button and you're good to go!''' ##I had already done it :)
true
30288a48048f82daf25da88ed697364d86d0fc4d
OliverTarrant17/CMEECourseWork
/Week2/Code/basic_io.py
1,589
4.21875
4
#! usr/bin/python """Author - Oliver Tarrant This file gives the example code for opening a file for reading using python. Then the code writes a new file called testout.txt which is the output of 1-100 and saves this file in Sandbox folder (see below). Finally the code gives an example of storing objects for later use. In this example my_dictionary is stored as the file testp.p in sandbox. Pickle is used to serialize the objects hieracy""" ######################## # FILE INPUT ######################## # Open a file for reading f = open('../Sandbox/test.txt', 'r') # use "implicit" for loop: # if the object is a file, python will cycle over lines for line in f: print line, # the "," prevents adding a new line # close the file f.close() # same example, skip blank lines f = open('../Sandbox/test.txt', 'r') for line in f: if len(line.strip()) > 0: #removes trailing and leading spaces from line and determines if it is non blank print line, f.close() ################# # FILE OUTPUT ################# list_to_save = range(100) f = open('../Sandbox/testout.txt','w') for i in list_to_save: f.write(str(i) + '\n') ## Add a new line at the end f.close() #################### # STORING OBJECTS #################### # To save an object (even complex) for later use my_dictionary = {"a key": 10, "another key": 11} import pickle f = open('../Sandbox/testp.p','wb') ## note the b: accept binary files pickle.dump(my_dictionary, f) f.close() ## Load the data again f = open('../Sandbox/testp.p','rb') another_dictionary = pickle.load(f) f.close() print another_dictionary
true
e80b0d4d97c6cce390144e17307a65a7fb0cced1
DroidFreak32/PythonLab
/p13.py
2,590
4.75
5
# p13.py """ Design a class named Account that contains: * A private int data field named id for the account. * A private float data field named balance for the account. * A private float data field named annualInterestRate that stores the current interest rate. * A constructor that creates an account with the specified id (default 0), initial balance (default 100), and annual interest rate (default 0). * The accessor and mutator methods for id , balance , and annualInterestRate . * A method named getMonthlyInterestRate() that returns the monthly interest rate. * A method named getMonthlyInterest() that returns the monthly interest. * A method named withdraws that withdraws a specified amount from the account. * A method named deposit that deposits a specified amount to the account. (Hint: The method getMonthlyInterest() is to return the monthly interest amount, not the interest rate. Use this formula to calculate the monthly interest: balance*monthlyInterestRate. monthlyInterestRate is annualInterestRate / 12 . Note that annualInterestRate is a percent (like 4.5%). You need to divide it by 100 .) Write a test program that creates an Account object with an account id of 1122, a balance of $20,000, and an annual interest rate of 4.5%. Use the withdraw method to withdraw $2,500, use the deposit method to deposit $3,000, and print the id, balance, monthly interest rate, and monthly interest. """ class Account: def __init__(self,id=0,balance=100.0,annualInterestRate=0.0): self.__id=id self.__balance=balance self.__annualInterestRate=annualInterestRate def getId(self): #Accessor Functions return self.__id def getBalance(self): return self.__balance def getannualInterestRate(self): return self.__annualInterestRate def setId(self,id): #Mutator Fucntions self.__id=id def setBalance(self,balance): self.__balance=balance def setannualInterestRate(self,annualInterestRate): self.__annualInterestRate=annualInterestRate def getMonthlyInterestRate(self): return self.__annualInterestRate/(12*100) def getMonthlyInterest(self): return self.__balance*self.getMonthlyInterestRate() def withdraw(self,amt): self.__balance-=amt def deposit(self,amt): self.__balance+=amt a=Account(1122,20000,4.5) a.withdraw(2500) a.deposit(3000) print("Id:",a.getId()," Balance:",a.getBalance()," Monthly Interest Rate:",a.getMonthlyInterestRate()," Monthly Interest:",a.getMonthlyInterest()) #############################################
true
650c23952ab2978697916954ed04761ed800330c
DroidFreak32/PythonLab
/p09.py
592
4.1875
4
# p09.py ''' Consider two strings, String1 and String2 and display the merged_string as output. The merged_string should be the capital letters from both the strings in the order they appear. Sample Input: String1: I Like C String2: Mary Likes Python Merged_string should be ILCMLP ''' String1=input("Enter string 1:") String2=input("Enter string 2:") merged_string="" for ch in String1: if ch.isupper(): merged_string=merged_string+ch for ch in String2: if ch.isupper(): merged_string=merged_string+ch print(merged_string) #############################################
true
64e179dae3eada5e76890da5c412dacddab81a1e
TenckHitomi/turtle-racing
/racing_project.py
2,391
4.3125
4
import turtle import time import random WIDTH, HEIGHT = 500, 500 COLORS = ['red', 'green', 'blue', 'orange', 'yellow', 'black', 'purple', 'pink', 'brown', 'cyan'] def get_number_of_racers(): """Input number of turtles you want to show up on the screen""" racers = 0 while True: racers = input("Enter the number of racers (2 - 10): ") if racers.isdigit(): #Checks if the input is a digit for # of racers. If not prompts for another input racers = int(racers) else: print('Input is not numeric... Try again.') continue if 2 <= racers <= 10: #Checks input of user to see if it falls between 2 & 10 return racers else: print('Number not in range of 2-10...Try again.') def race(colors): #Create colored turtles turtles = create_turtles(colors) while True: #Randomly pass a range through each turtle to determine pixels it moves. The further apart the bigger the gap. for racer in turtles: distance = random.randrange(1, 20) racer.forward(distance) x, y = racer.pos() #Returns index of first turtle to cross the finish line and returns color value if y >= HEIGHT // 2 -10: return colors[turtles.index(racer)] def create_turtles(colors): #Creates Turtle list and evenly spaces each turtle on the screen from each other. turtles = [] spacingx = WIDTH // len(colors) + 1 for i, color in enumerate(colors): racer = turtle.Turtle() racer.color(color) racer.shape('turtle') racer.left(90) #Rotates the turtles to look up on the screen racer.penup() racer.setpos(-WIDTH//2 + (i + 1) * spacingx, -HEIGHT//2 + 20) racer.pendown() turtles.append(racer) return turtles def init_turtle(): """Produces window on screen""" screen = turtle.Screen() screen.setup(WIDTH , HEIGHT) screen.title('Turtle Racing!') #Sets specific name you want to display on window racers = get_number_of_racers() #Returns the number of racers after all conditionals have been passed init_turtle() random.shuffle(COLORS) colors = COLORS[:racers] winner = race(colors) print(f"The winner is the {winner.title()} turtle.") time.sleep(5) #Python leaves window open for 5 seconds after race finishes so you can see results on screen
true
f5c0aa56ad89771487550747ea9edaa2656c0e0a
carlshan/design-and-analysis-of-algorithms-part-1
/coursework/week2/quicksort.py
1,554
4.28125
4
def choose_pivot(array, length): return array[0], 0 def swap(array, i, j): temp = array[i] array[i] = array[j] array[j] = temp def partition(array, low, high): pivot = array[low] i, j = low + 1, high - 1 # initializes i to be first position after pivot and j to be last index while True: # If the current value we're looking at is larger than the pivot # it's in the right place (right side of pivot) and we can move left, # to the next element. # We also need to make sure we haven't surpassed the low pointer, since that # indicates we have already moved all the elements to their correct side of the pivot while (i <= j and array[j] >= pivot): j -= 1 # Opposite process of the one above while (i <= j and array[i] <= pivot): i += 1 # We either found a value for both j and i that is out of order # in which case we swap and continue # or i is higher than j, in which case we exit the loop # after swapping the pivot into its rightful position if i <= j: swap(array, i, j) # The loop continues else: # everything has been partitioned swap(array, low, j) return j def quicksort(array, low, high): if high - low <= 1: return array part = partition(array, low, high) quicksort(array, low, part) quicksort(array, part + 1, high) return array test = [3, 8, 2, 5, 1, 4, 7, 6] print(quicksort(test, 0, len(test)))
true
7c885c274f4103db153970a6ce1476cf415c790e
Mkaif-Agb/Python_3
/zip.py
398
4.46875
4
first_name = ["Jack", "Tom", "Dwayne"] last_name = ["Ryan","Holland", "Johnson"] name = zip(first_name,last_name) for a,b in name: print(a,b) def pallindrome(): while True: string=input("Enter the string or number you want to check") if string == string[::-1]: print("It is a pallindrome") else: print("It is not a pallindrome") pallindrome()
true
0af9c97699b04830aa12069d4258c5725f8f0c35
sheriline/python
/D11/Activities/friend.py
562
4.21875
4
""" Elijah Make a program that filters a list of strings and returns a dictionary with your friends and foes respectively. If a name has exactly 4 letters in it, you can be sure that it has to be a friend of yours! Otherwise, you can be sure he's not... Output = { "Ryan":"friend", "Kieran":"foe", "Jason":"foe", "Yous":"friend" } """ names = ["Ryan", "Kieran", "Jason", "Yous"] friend_or_foe = {name: "friend" if len(name) == 4 else "foe" for name in names} print(friend_or_foe) # {'Ryan': 'friend', 'Kieran': 'foe', 'Jason': 'foe', 'Yous': 'friend'}
true
030162330c0295f35315dd1d90a688b293a39759
sheriline/python
/D1 D2/ifstatement.py
731
4.3125
4
#!/usr/bin/env python3.7 #example # gender = input("Gender? ") # if gender == "male" or gender == "Male": # print("Your cat is male") # else: # print("Your cat is female") # age = int(input("Age of your cat? ")) # if age < 5: # print("Your cat is young.") # else: # print("Your cat is adult.") #exercises print(""" Make a program that asks the number between 1 and 10\. If the number is out of range the program should display "invalid number". """) number = input("Input a number between 1 and 10: ") if int(number) > 10: print("invalid number") else: print("valid number") print("\n") print("Make a program that asks a password.\n") password = input("Please enter your password: ") print(password)
true
464ddc137e89538fd0a5cc63b58bfc837bdf06c5
scotttct/tamuk
/Python/Python_Abs_Begin/Mod3_Conditionals/3_5_Math_3.py
787
4.59375
5
# Task 3 # PROJECT: IMPROVED MULTIPLYING CALCULATOR FUNCTION # putting together conditionals, input casting and math # update the multiply() function to multiply or divide # single parameter is operator with arguments of * or / operator # default operator is "*" (multiply) # return the result of multiplication or division # if operator other than "*" or "/" then return "Invalid Operator" # [ ] create improved multiply() function and test with /, no argument, and an invalid operator ($) def multiply(operator): x = float(input('Enter number 1: ')) y = float(input('Enter number 2: ')) if operator == "*": return x * y elif operator == "/": return x / y else: return "invalid operator" print(multiply(input("Enter '/' or '*': ")))
true
a8f769fc11e575144fed429fd57165f9b318ee36
scotttct/tamuk
/Python/Python_Abs_Begin/Mod4_Nested/4_3-7_1-While_True.py
1,132
4.1875
4
# Task 1 # WHILE TRUE # [ ] Program: Get a name forever ...or until done # create variable, familar_name, and assign it an empty string ("") # use while True: # ask for user input for familar_name (common name friends/family use) # keep asking until given a non-blank/non-space alphabetical name is received (Hint: Boolean string test) # break loop and print a greeting using familar_name # [ ] create Get Name program # familar_name = "" # while True: # familiar_name = input ("Enter your commonly used name,something your friends or family use: ") # if familiar_name.isalpha(): # print ("Hi",familiar_name.capitalize() + "!", "I am glad you are alive and well!") # break # elif not familiar_name.isalpha: # print("keep going\n") # else: # break #################################33 #2nd Try def familiar_name(): while True: name_input = input("What's a common name your friends and family use?") if name_input.isalpha(): break else: print() print() print("Hey " + name_input.capitalize()) familiar_name()
true
a2d480068f763e0465022ea3ed208a4b4889ac4a
scotttct/tamuk
/Homework/Homework1.py
1,702
4.53125
5
# Write a program that prints the numbers from 1 to 100. # But for multiples of three print “Fizz” instead of the number # and for the multiples of five print “Buzz”. # For numbers which are multiples of both three and five print “FizzBuzz”." # for i in range(0, 101): # print(i) # print() # for t in range(0, 101, 3): # print(t) # print() # for f in range(0, 101, 5): # f="fizz" # print(f) ################################################################### # prints odd numbers as a template for creating a function to perform the task of printing by 3 and replace # def even_numbers(number): # for i in range(number): # if i == 0: # continue # elif i%2 == 0: # print(i) # else: # continue # print(even_numbers(101)) #create a function that prints all the necessary assignment parameters #This attempt printed biff only # def nums(number1, number2): # for i in range(number1, number2): # While i in range(number1, number2, 3) # print("biff") # elif: # continue # print(nums(1,101)) #another attempt that printed all 1's # i = 1 # while i < 101: # print(i) # if (i == 3): # print("biff") # elif (1==5): # print("baff") # elif (i==3 or i==5): # print("biffbaff") # i += 1 # trying for nested for loops, taking from python documentation and modified for n in range(1, 101): print(n) if n in range(1,101,3): print("biff") elif n in range(1,101,5): print('baff') elif n in range(1, 101, 3) or n in range(1,101,5): #this line does not work print("biffbaff") # ... else: # ... # loop fell through without finding a factor # ... print(n, 'is a prime number')
true
9f5ab86e2e150066f02dacc8d1c35defabc1115f
scotttct/tamuk
/Python/Python_Abs_Begin/Mod1/p1_2.py
280
4.125
4
# examples of printing strings with single and double quotes # print('strings go in single') # print("or double quotes") # printing an Integer with python: No quotes in integers/numbers print(299) # printing a string made of Integer (number) characters with python print("2017")
true
ec67d5050211e27b595231fa5f5f3ae31011b821
palaciosdiego/pythoniseasy
/src/fizzBuzzAssignment.py
630
4.15625
4
def isPrime(number): # prime number is always greater than 1 if number > 1: for i in range(2, number): if (number % i) == 0: return False # break else: return True # if the entered number is less than or equal to 1 # then it is not prime number else: return False for num in range(1, 101): if(num % 3 == 0): if(num % 5 == 0): print("FizzBuzz") else: print("Fizz") elif(num % 5 == 0): print("Buzz") else: print(num) if(isPrime(num)): print("Prime")
true
fbfd74756c1efd103b8958b594b2f876f9ed4876
arefrazavi/spark_stack
/spark_sql/select_teenagers_sql.py
1,769
4.15625
4
from pyspark import SparkConf, SparkContext from pyspark.sql import SparkSession, Row def convert_to_sql_row(line): row = line.split(',') return Row(id=int(row[0]), name=str(row[1]), age=int(row[2]), friends_count=int(row[3])) if __name__ == '__main__': sc_conf = SparkConf().setMaster('local[*]').setAppName('SelectTeenagers') sc = SparkContext(conf=sc_conf) # Since the dataset file doesn't have a header of columns, # we have to first create an rdd from file and them convert that to a dataframe. dataset_rdd = sc.textFile('dataset/fakefriends.csv') dataset_rows = dataset_rdd.map(convert_to_sql_row) # Create a SparkSQL session. spark = SparkSession.builder.appName('SelectTeenagers').getOrCreate() # Create a dataframe by inferring schema from row objects. dataset_df = spark.createDataFrame(dataset_rows).cache() # Three ways to select teenagers by filtering rows by age column # 1) Use filter function and conditions on dataframe object #teenagers_df = dataset_df.filter(dataset_df.age >= 13).filter(dataset_df.age <= 19).\ # orderBy(dataset_df.friends_count, ascending=False) # 2) Use filter function and sql-like conditions #teenagers_df = dataset_df.filter('age >= 13 AND age <= 19').orderBy('friends_count', ascending=False) # 3) Perform SQL query on the dataframe # 3.1) create a view of dataframe. dataset_df.createOrReplaceTempView('friends') # 3.2) Run SQL query on the view teenagers_df = spark.sql('SELECT * FROM friends WHERE age >= 12 AND age <= 19 ORDER BY friends_count DESC') # Print row objects for row in teenagers_df.collect(): print(row) # Print n rows of dataframe teenagers_df.show(n=20) spark.stop()
true
b3defea1bcb2f421c1d0ba8b54faf7f4a659ea43
EmersonPaul/MIT-OCW-Assignments
/Ps4/ps4a.py
1,929
4.34375
4
# Problem Set 4A # Name: <your name here> # Collaborators: # Time Spent: x:xx def get_permutations(sequence): ''' Enumerate all permutations of a given string sequence (string): an arbitrary string to permute. Assume that it is a non-empty string. You MUST use recursion for this part. Non-recursive solutions will not be accepted. Returns: a list of all permutations of sequence Example: >>> get_permutations('abc') ['abc', 'acb', 'bac', 'bca', 'cab', 'cba'] Note: depending on your implementation, you may return the permutations in a different order than what is listed here. ''' if len(sequence) == 1: return [sequence] permutation_list = [] for letter in sequence: index = sequence.index(letter) for char in get_permutations(sequence[:index] + sequence[index + 1:]): permutation_list += [letter + char] return permutation_list def string_permutation(string): if len(string) == 1 or len(string) == 0: return 1 return len(string) * string_permutation(string[1:]) if __name__ == '__main__': # #EXAMPLE # example_input = 'abc' # print('Input:', example_input) # print('Expected Output:', ['abc', 'acb', 'bac', 'bca', 'cab', 'cba']) # print('Actual Output:', get_permutations(example_input)) # # Put three example test cases here (for your sanity, limit your inputs # to be three characters or fewer as you will have n! permutations for a # sequence of length n) test_data = ['abc', 'bust', 'cd', 'rusty'] for data in test_data: permutation_list = get_permutations(data) print('The permutations are : ', permutation_list) print('Expected length of list: ', string_permutation(data)) print('Actual length : ', len(permutation_list))
true
ee37314201ebeace70e328eabf38777faedfd212
dairof7/holbertonschool-higher_level_programming
/0x07-python-test_driven_development/5-text_indentation.py
641
4.15625
4
#!/usr/bin/python3 """ Module text_indentation module to ident a text print a text """ def text_indentation(text): """this functions print a text insert newline where find a ".", "?", ":" """ if type(text) != str or text is None: raise TypeError("text must be a string") sw = 0 for i in text: if i in [".", "?", ":"]: print(i, end="\n\n") sw = 1 else: if sw == 0: print(i, end="") else: if i == ' ': pass else: print(i, end="") sw = 0
true
bb3c1324e8def64fbfddcfcba51d48ce526b40ae
PriyanjaniCh/Python
/henderson_method.py
2,980
4.3125
4
#!/usr/bin/python3 # Purpose: To implement the Henderson method # Execution: One argument for start number can be passed # # William F. Henderson III was a brilliant computer scientist who was taken from us all too soon. He had trouble falling asleep # because there were too many thoughts running through his head. The everyday method of counting sheep didn’t work for him because # it was too easy, leaving him too much time for other thoughts. So he invented the following method which required more calculation. # Start with the number 1000. Subtract 1 from it repeatedly (i.e., 999, 998, etc.) until you get a number ending in 0. (That will happen at 990.) # Then switch to subtracting 2’s, i.e., 988, 986, etc., until you again get a number ending in 0. Then switch to subtracting 3’s. # Every time you get a number ending in 0, increment the number you are subtracting. Stop when the next subtraction would cause the number to go negative. # This program is an implementation of the above method import sys print('\nNumber of arguments: ', len(sys.argv)) print('Argument List: ', str(sys.argv), '\n\n\n') # Validating the arguments passed if len(sys.argv) > 2: print('Wrong number of arguments\n\n') exit() elif len(sys.argv) > 1: if int(sys.argv[1]) < 0: print('Argument passed is Negative \n\n') exit() start_number = int(sys.argv[1]) else: start_number = 1000 count = 0 i = 1 total = 0 # total spoken numbers increment = 0 # total number of increments result = [] # list for the calculated output initial = [] # list for first two rows initial.append(['decrement','current','count','']) initial.append(['',str(start_number),'','']) number = start_number while True: number = number-i count = count+1 if number % 10 == 0 : print_count = '*'*count result.append([i, number, count, print_count]) i = i+1 count = 0 if number-i < 0: print_count = '*'*count if number != 0: result.append([i, number, count, print_count]) break # formats for lists initial and result format1 = '{:>10s}{:>10s}{:>10s}{}{:<14s}' format2 = '{:>10d}{:>10d}{:>10d}{}{:<14s}' for j in range(len(initial)): print(format1.format(initial[j][0],initial[j][1],initial[j][2], ' ',initial[j][3])) for j in range(len(result)): print(format2.format(result[j][0],result[j][1],result[j][2], ' ',result[j][3])) # calculating total spoken words and increment increment = len(result) for j in range(len(result)): total = total + result[j][2] print("\n\nThere were", total,"numbers spoken with", increment,"different increments.") print("Average cycles/incr = {:0.2f}.".format((total/increment))) passed = start_number-number print("\n\nThere were", passed, "numbers passed by with", increment, "different increments.") print("Average numbers/incr = {:0.2f}.".format(passed/increment))
true
f390a60a44262785efe169930db6f56cba694885
hyperlearningai/introduction-to-python
/examples/my-first-project/myutils/collections/listutils.py
982
4.15625
4
#!/usr/bin/env python3 """Collection of useful tools for working with list objects. This module demonstrates the creation and usage of modules in Python. The documentation standard for modules is to provide a docstring at the top of the module script file. This docstring consists of a one-line summary followed by a more detailed description of the module. Sections may also be included in module docstrings, and are created with a section header and a colon followed by a block of indented text. Refer to https://www.python.org/dev/peps/pep-0008/ for the PEP 8 style guide for Python code for further information. """ def convert_to_dict(my_keys, my_values): """Merge a given list of keys and a list of values into a dictionary. Args: my_keys (list): A list of keys my_values (list): A list corresponding values Returns: Dict: Dictionary of the list of keys mapped to the list of values """ return dict(zip(my_keys, my_values))
true
b752e89398d424ec93433eb14083f898431ce8bd
mcp292/INF502
/src/midterm/2a.py
726
4.4375
4
''' Approach: I knew I had to run a for loop it range of the entered number to print the asterisks. The hard part was converting user input to a list of integers. I found out a good use for list comprehension, which made the code a one liner. ''' nums = input("Enter 5 comma separated numbers between 1 and 20: ").split(",") # convert list of strings to list of ints try: nums = [int(num) for num in nums] # list comprehension except ValueError: print("\nEntry must be a number!\nTerminating program...\n") exit() for num in nums: if (num <= 20): for iter in range(num): print("*", end='') print() else: print("Number out of range! {}".format(num))
true
c7443de044ebc3149c37b398ee230d21ca784bee
johnnymango/IS211_Assignment1
/assignment1_part1.py
1,969
4.4375
4
#!/usr/bin/env python # -*- coding: utf-8 -*- """Assignment 1 - Part 1""" def listDivide(numbers=[], divide=2): """ The function returns the number of elements in the numbers list that are divisible by divide. Args: numbers(list): a list of numbers divide (int, default=2): the number by which numbers in the list will be divided by. Returns: count(int): the count of numbers divisible by divide where remainder = 0. Example: >>> listDivide([2, 4, 6, 8, 10]) 5 """ count=0 for i in numbers: remainder = i % divide if remainder == 0: count=count+1 return count class ListDivideException(Exception): """A custom Exception Class to be raised when errors are created.""" pass def testListDivide(): """A function to test the listDivide function and raise an exception when the test fails. Args: None Returns: An exception when the expected result from the test fails. Example: Traceback (most recent call last): File "C:/Users/Johnny/PyCharmProjects/IS211_Assignment1/assignment1_part1.py", line 62, in <module> testListDivide() File "C:/Users/Johnny/PyCharmProjects/IS211_Assignment1/assignment1_part1.py", line 51, in testListDivide raise ListDivideException("Test 2 Error") __main__.ListDivideException: Test 2 Error """ test1 = listDivide([1, 2, 3, 4, 5]) if test1 != 2: raise ListDivideException("Test 1 Error") test2 = listDivide([2,4,6,8,10]) if test2 != 5: raise ListDivideException("Test 2 Error") test3 = listDivide([30, 54, 63, 98, 100], divide=10) if test3 !=2: raise ListDivideException("Test 3 Error") test4 = listDivide([]) if test4 != 0: raise ListDivideException ("Test 4 Error") test5 = listDivide([1,2,3,4,5], 1) if test5 != 5: raise ListDivideException ("Test 5 Error") testListDivide()
true
dc72e0c85760fb647f5ce64289303cbe915fdb04
Anosike-CK/class_code
/Membership_Operartors.py
1,389
4.625
5
# MEMBERSHIP OPERATORS ARE USED TO CHECK FOR THE MEMBERSHIP OF A VARIABLE IN A SEQUENCE a = 10 b = 20 num_list = [1, 2, 3, 4, 5 ] if ( a in num_list ): print ("Line 1 - a is available in the given num_list") else: print ("Line 1 - a is not available in the given num_list") if ( b not in num_list ): print ("Line 2 - b is not available in the given num_list") else: print ("Line 2 - b is available in the given num_list") a = 2 if ( a in num_list ): print ("Line 3 - a is available in the given num_list") else: print ("Line 3 - a is not available in the given num_list") print("\n For IN operator") name = "Adebayo" print("x" in name) #print false because 'x' is not a member in name print("a" in name) #print true because 'a' is in name print("x" not in name, "after adding not logigical operator") #print true because not negates the original answer print("\n mixing menbership operators with the logicaloperators for multiple tests\n") test_list = [1,4,5,6,7,8] print(1 in test_list, ", single test") print(1 in test_list and 32 in test_list, ",multiple tests with 'AND' logical operator") print(1 in test_list and 32 not in test_list, ",multiple tests with 'AND' logical operator and 'NOT' inverting factor") print(1 in test_list and 32 not in test_list or 8 in test_list, ",multiple tests with 'AND' logical operator and 'NOT' inverting factor")
true
fd0012b59d8cda95b17f00aecef6093446defd34
Anosike-CK/class_code
/first_thonny_practice.py
330
4.25
4
"""website = "Apple.com" #we re-write the program to change the value of website to programiz.com website = "programiz.com" print(website) """ """#Assign multiple values to multiple variables a,b,c = 5,3,5.2 print(a) print(b) print(c)""" #Assign the same value to multiple variables x = y = z = "hmm" print(x) print(y) print(z)
true
90e061241a1de2eb2ec544b864782218ec8d6711
Kllicks/DigitalCraftsPythonExercises
/OddNumbers.py
356
4.375
4
#using while loop, print out the odd numbers 1-10 inclusive, one on a line #initiate variable i = 1 #while loop to cycle through and print 1-10 while i <= 10: #if statement to check if the number is also odd #can't use and on outer while loop because it would end the program when 2 failed if i % 2 != 0: print(i, "") i += 1
true
5c250f4557d71212cde13a0002b7ebc8f39f4bc6
yasar84/week1
/lists.py
2,166
4.5
4
cars = ["toyota","lexus", "bmw", "merc" ] print(cars) # accessing the list print("first element of cars list: " + cars[0]) print("second element of cars list: " + cars[1]) print("third element of cars list: " + cars[2]) print("fourth element of cars list: " + cars[3]) print("last element of cars list: " + cars[-1]) print("second element from last of cars list: " + cars[-2]) # IndexError expected "list index out of range" # print("fourth element of cars list: " + cars[4]) # adding elements to the list >> append() cars.append("range rover") print(cars) cars.append("mazda") print(cars) print("fifth element of cars list: " + cars[4]) print("sixth element of cars list: " + cars[5]) # modifying, replacing the element on certain index # cars[3] = "bentley" cars.extend("bentley") print(cars) # cars[0] = "ram" cars.extend("ram") print(cars) # deleting the elements by index del cars[0] print(cars) del cars[-9:] print(cars) # adding an element to a specific position cars.insert(0, "audi") print(cars) cars.insert(3, "tesla") print(cars) # remove() deleting the element from the list using the value cars.remove("range rover") print(cars) # pop() removes last element and returns the value sold_cars = [] # empty list sold_cars.append(cars.pop()) # adding the removed car to the end of the new list sold_cars.insert(0, cars.pop()) # adding the removed car to the beginning of the new list # adding the removed car(first car in the list) to the beginning of the new list sold_cars.insert(0, cars.pop(0)) print(sold_cars) print(cars) # organize your lists # sort() # cars.sort() # list is sorted in ascending order # cars.sort(reverse=True) # list is ordered in descending order sorted_cars = sorted(cars) print(cars) print(sorted_cars) sorted_cars_desc = sorted(cars, reverse=True) print(sorted_cars_desc) print(cars) # cars.reverse() # does not apply ordering asc or desc, it just reverses the list # print(cars) # copying the list cars.append("moskvish") print(cars) print(new_cars) new_cars_copy = cars[:] # copying the list and creating independent new_cars_copy list cars.append("lada") print(cars) print(new_cars) print(new_cars_copy)
true
1d001ee57009334fa0394946f4b65c4f46741172
AgguBalaji/MyCaptain123
/file_format.py
380
4.71875
5
"""Printing the type of file based on the extension used in saving the file eg: ip-- name.py op--it is a python file""" #input the file name along with the extension as a string file=input("Input the Filename:") #it is a python file if it has .py extension if ".py" in file: print("The extension of the file is : 'python'") else: print("File type cannot be identified")
true
af8d1a4b71460e9ecd5819fddd63a97d4ccd7bfa
cai-michael/kemenyapprox
/matrix.py
1,382
4.3125
4
""" Defines some matrix operations using on the Python standard library """ def generate_zeros_matrix(rows, columns): """ Generates a matrix containing only zeros """ matrix = [[0 for col in range(columns)] for row in range(rows)] return matrix def get_column_as_list(matrix, column_no): """ Retrieves a column from a matrix as a list """ column = [] num_rows = len(matrix) for row in range(num_rows): column.append(matrix[row][column_no]) return column def calculate_cell(matrix_a, matrix_b, row, column): """ Calculates an individual cell's value after multiplication """ matrix_b_column = get_column_as_list(matrix_b, column) column_length = len(matrix_b_column) products = [matrix_a[row][i]*matrix_b_column[i] for i in range(column_length)] return sum(products) def matrix_multiplication(matrix_a, matrix_b): """ Multiplies two matrices by each other """ a_rows = len(matrix_a) a_columns = len(matrix_a[0]) b_rows = len(matrix_b) b_columns = len(matrix_b[0]) if a_columns != b_rows: raise Exception(f'Dimension mismatch: {a_columns}, {b_rows}') result = generate_zeros_matrix(a_rows, b_columns) for i in range(a_rows): for j in range(b_columns): result[i][j] = calculate_cell(matrix_a, matrix_b, i, j) return result
true
37f813e7e6974fe499252e476755e3e7411a037c
khayk/learning
/python/cheatsheet.py
1,311
4.28125
4
# 1. Print two strings with formatting # see https://www.programiz.com/python-programming/input-output-import print("Hello %s %s! You just delved into python." % (a, b)) # 2. Map each item from the input to int integer_list = map(int, input().split()) # Creates a tuple of integers t = tuple(integer_list) # Creates a tuple of integers l = list(integer_list) # 3. Read the first string inside the command and the rest inside args command, *args = input().split() # 4. Locates the main function and call it if __name__ == '__main__': print("You are inside main") # 5. strip returns a copy of the string with both leading and trailing characters removed (based on the string argument passed). " hello ".strip() # result is 'hello' # 6. Your task is to find out if the string contains: alphanumeric characters any([char.isalnum() for char in S]) # 7. String adjustements width = 20 'HackerRank'.ljust(width,'-') # HackerRank---------- 'HackerRank'.center(width,'-') # -----HackerRank----- 'HackerRank'.rjust(width,'-') # ----------HackerRank # 8. The textwrap module provides two convenient functions: wrap() and fill(). print(textwrap.wrap(string,8)) print(textwrap.fill(string,8)) # 9. Make the first letter uppercase 'name'.capitalize()
true
50b86447072eac47a70ad3e35bb1a285cd5a3619
BTHabib/Lessons
/Lesson 2 Trevot test.py
820
4.21875
4
""" Author: Brandon Habib Date: 1/21/2016 """ #Initializing the array numbers = [] #Initializing A A = 0 #Printing instructions for the user print ("Give me an integer Trevor and then type \"Done\" when you are done. When all is finished I will show you MAGIC!") #A while loop to continue adding numbers to the array while (A != "Done"): A = input ("Give me an integer Trevor --> ") #If statement appending the inputs if (A != "Done"): numbers.append(int(A)) #Initializing the Sum Sum = 0 #Printing updates to the user print ("MAGICING THE NUMBERS FORM THE ARRAY") #For loop to sum the elements in the array numbers and prints number for number in numbers: Sum = Sum + number print (number) #Prints final message and the sum of numbers print ("THIS IS THE MAGICAL SUM " + str(Sum))
true
771de63fb0fd06a32f10e41fd6411f28bd3b985c
mfcarrasco/Python_GIS
/AdvGIS_Course/MyClassPractice.py
720
4.15625
4
class Myclass: var = "This is class variable" def __init__(self, name):# first parameter always self in a class self.name = name def funct(self):#using method and a function within aclass so ALWAYS start with self print "This is method print", self.name foo = Myclass("Malle") #this step is called instantiate. This instance of class assigned to foo. now foo become object print foo.var # no parantheses because it is not an attribute and it is not a method so NO parantheses foo.funct() #need to put parantheses becuase funct is a method; foo is the "self" becuase it has the instance of the class foo1 = Myclass("sara") foo2 = Myclass("bob") foo3 = Myclass ("jeff")
true
13ab27733b3c75d0c5f0c278698b43c3dd04d5a3
haaruhito/PythonExercises
/Day1Question3.py
495
4.125
4
# With a given integral number n, write a program to generate a dictionary that # contains (i, i x i) such that is an integral number between 1 and n (both included). # and then the program should print the dictionary.Suppose the following input is # supplied to the program: 8 # Then, the output should be: {1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64} num = int(input("Enter a number: ")) dictionary = {} for i in range (1, num+1): dictionary[i] = i * i print(dictionary)
true
c142586277e8f59719f324b7c2aea239ecc98680
kmiroshkhin/Python-Problems
/medium_vowelReplacer.py
622
4.21875
4
"""Create a function that replaces all the vowels in a string with a specified character. Examples replace_vowels("the aardvark", "#") ➞ "th# ##rdv#rk" replace_vowels("minnie mouse", "?") ➞ "m?nn?? m??s?" replace_vowels("shakespeare", "*") ➞ "sh*k*sp**r*" """ def replace_vowels(txt,ch): vowels = ['a','e','i','o','u'];replacementlist=[];replacement="" for i in txt: if i in vowels: replacementlist.append(ch) else:replacementlist.append(i) for i in replacementlist: replacement+=i return replacement print(replace_vowels('Eurika!','#'))
true
561b7063ef63e21a32f425e8aa2cd0060d1e3048
kmiroshkhin/Python-Problems
/easy_recursion_Sum.py
353
4.25
4
"""Write a function that finds the sum of the first n natural numbers. Make your function recursive. Examples sum_numbers(5) ➞ 15 // 1 + 2 + 3 + 4 + 5 = 15 sum_numbers(1) ➞ 1 sum_numbers(12) ➞ 78 """ def sum_numbers(n): addition=int() for i in range(1,n+1): addition+=i return addition print(sum_numbers(5))
true
9e4a81ce2ea3628967b2f2194caee577914bd1d8
kmiroshkhin/Python-Problems
/Hard_WhereIsBob.py
650
4.3125
4
"""Write a function that searches a list of names (unsorted) for the name "Bob" and returns the location in the list. If Bob is not in the array, return -1. Examples find_bob(["Jimmy", "Layla", "Bob"]) ➞ 2 find_bob(["Bob", "Layla", "Kaitlyn", "Patricia"]) ➞ 0 find_bob(["Jimmy", "Layla", "James"]) ➞ -1 """ def find_bob(names): counter = -1;encounterBob=False for name in names: if name =='Bob': counter += 1 encounterBob=True break elif name !='Bob': counter += 1 if encounterBob == True: return counter else: return -1
true
3700278b8bb878b60eaaf97e88a321ec53e146d0
erikayi/python-challenge
/PyPoll/main_final.py
2,013
4.21875
4
# Analyze voting poll using data in csv file. # import csv and os. import csv import os # define the location of the data. election_csv = "Resources/election_data.csv" # open the data. with open(election_csv, 'r') as csvfile: election_csv = csv.reader(csvfile) header = next(election_csv) # define the values. vote_count = 0 popular_vote = 0 candidate_dict = {} # find total number of votes cast. for row in election_csv: vote_count += 1 candidate_dict[row[2]] = candidate_dict.get(row[2], 0) + 1 # print the results using print() function. print(f"=========================") print(f'Election Results') print(f'=========================') print(f'Total Votes: {vote_count}') print(f'=========================') # Discover complete list of candidates received the most votes. for candidate, vote in candidate_dict.items(): # Find the percentage of votes that each candidate received. # Find the total number of votes each candidate won. won_candidate = (f'{candidate}: {vote / vote_count * 100:.3f}% ({vote})') print(won_candidate) # Find the winner of the election based on the popular vote. # Use If and greater than function to find who has the most votes to win the election. if vote > popular_vote: winner = candidate # print the results using print() function. print(f'=========================') print(f'Winner: {candidate}') print(f'=========================') # Finalize the script and Export to a .txt. file with results. output_file = os.path.join("Analysis.txt") with open(output_file, "w") as text_file: text_file.write ("Election Results\n") text_file.write ("===========================\n") text_file.write ("Total Votes: {}\n".format(vote_count)) text_file.write ("===========================\n") text_file.write ("{}\n".format(won_candidate)) text_file.write ("===========================\n") text_file.write ("Winner: {}\n".format(candidate))
true
9e7d6229ad3039076757cff1edf336796064b671
Sudhijohn/Python-Learnings
/conditional.py
388
4.1875
4
#Conditional x =6 ''' if x<6: print('This is true') else: print('This is false') ''' #elif Same as Else if color = 'green' ''' if color=='red': print('Color is red') elif color=='yellow': print('Color is yellow') else: print('color is not red or yellow') ''' #Nested if if color == 'green': if x <10: print('Color is Green and number is lessthan 10')
true
60b2ea5bc3f7100de9f8f05c80dee8b0a803de46
Aravind2595/MarchPythonProject
/Flow controls/demo6.py
235
4.21875
4
#maximum number using elif num1=int(input("Enter the number1")) num2=int(input("Enter the number2")) if(num1>num2): print(num1,"is the highest") elif(num1<num2): print(num2,"is the highest") else: print("numbers are equal")
true
aa97b8e2e82b353ca5f1d3c14c97471b30d12521
Aravind2595/MarchPythonProject
/Flow controls/for loop/demo6.py
237
4.15625
4
#check a given number is prime or not num=int(input("Enter the number")) flag=0 for i in range(2,num): if(num%i==0): flag=1 if(flag>0): print(num," is not a prime number") if(flag==0): print(num,"is a prime number")
true
8a48a24a816b1693e493ddd2795f5f44aa958523
kblicharski/ctci-solutions
/Chapter 1 | Arrays and Strings/1_6_String_Compression.py
2,506
4.375
4
""" Problem: Implement a method to perform basic string compression using the counts of repeated characters. For example, the string 'aabcccccaaa' would become 'a2b1c5a3'. If the "compressed" string would not become smaller than the original string, your method should return the original string. You can assume the string has only uppercase and lowercase letters (a-z). Implementation: We can return early if our string is under 3 characters long, because there is no way that compression would benefit it. Otherwise, we need to traverse the string and count the number of consecutive characters, appending them to the list that stores the "tokens" of our compressed string. We then finally join the tokens back into a string and compare the lengths of our compressed string and our original string to determine which should be returned. Because we have to traverse the original string in O(N) time, and then join the compressed string in (worst case, when we have all unique characters) O(2N) time, the total runtime is linear. Efficiency: Time: O(N) Space: O(N) """ def compressed_string(string: str) -> str: """ Compress a string using the counts of its repeated characters, if possible. Args: string (str): The string to be compressed. Returns: str: The compressed string if its size is smaller than the original. Examples: >>> compressed_string('aabcccccaaa') 'a2b1c5a3' >>> compressed_string('abcdd') 'abcdd' """ if len(string) < 3: return string compressed_chars = [] count = 1 for i, c in enumerate(string): try: if c == string[i + 1]: count += 1 else: compressed_chars.append(c) compressed_chars.append(str(count)) count = 1 except IndexError: compressed_chars.append(c) compressed_chars.append(str(count)) compressed_str = ''.join(compressed_chars) if len(compressed_str) < len(string): return compressed_str return string assert compressed_string('') == '' assert compressed_string('a') == 'a' assert compressed_string('aa') == 'aa' assert compressed_string('aaa') == 'a3' assert compressed_string('abc') == 'abc' assert compressed_string('abcdefgh') == 'abcdefgh' assert compressed_string('aabcccccaaa') == 'a2b1c5a3' assert compressed_string('abcdd') == 'abcdd'
true
61a24ed9b8931c925de092f0116f780e253de52e
kblicharski/ctci-solutions
/Chapter 1 | Arrays and Strings/1_8_Zero_Matrix.py
2,826
4.125
4
""" Problem: Write an algorithm such that if an element in an MxN matrix is 0, its entire row and column are set to 0. Implementation: My initial, naive approach to the problem was to first find all occurrences of zeros and add their row and column values to two lists. Afterwards, we would check these lists and zero their respective rows and columns. This works well, but we still need to allocate an additional O(M+N) space for the two lists. Instead, we can reduce this to O(1) space by storing this information of what rows and columns to zero in the original matrix itself. This relies on the order in which we check the values in the matrix. When we check a value, we have checked all of the values preceding it -- the values in all previous rows, and all previous columns of that row. We can then set the first row at that column to zero, and the first column at that row to zero. These two slices of our matrix will store the information we need to zero all elements in these rows and columns. After parsing the matrix for zeros, we then just need to parse the first row and the first column. Efficiency: Time: O(MN) Space: O(1) """ from typing import List def zero_matrix(matrix: List[List[int]]) -> None: """ Set the contents of an element's row and column to 0 if the element is 0. Args: matrix (List[List[int]]): The matrix we are zeroing in-place. """ # Find the rows and the columns we want to zero for row, row_slice in enumerate(matrix): for col, value in enumerate(row_slice): if value == 0: matrix[row][0] = 0 matrix[0][col] = 0 # Zero the correct rows for row in range(1, len(matrix)): if matrix[row][0] == 0: for col in range(len(matrix[row])): matrix[row][col] = 0 # Zero the correct columns for col in range(1, len(matrix[0])): if matrix[0][col] == 0: for row in range(len(matrix)): matrix[row][col] = 0 # 1x1 matrix m = [[1]] zero_matrix(m) assert m == [[1]] # 1x1 matrix m = [[0]] zero_matrix(m) assert m == [[0]] # 1x2 matrix m = [[1, 0]] zero_matrix(m) assert m == [[0, 0]] # 2x1 matrix m = [ [1], [0] ] zero_matrix(m) assert m == [ [0], [0] ] # 2x2 matrix m = [ [1, 1], [0, 1] ] zero_matrix(m) assert m == [ [0, 1], [0, 0] ] # 3x3 matrix m = [ [1, 1, 1], [1, 0, 1], [1, 1, 1] ] zero_matrix(m) assert m == [ [1, 0, 1], [0, 0, 0], [1, 0, 1] ] # 4x5 matrix with two zeros m = [ [1, 1, 1, 1, 1], [1, 0, 1, 1, 1], [1, 1, 1, 1, 1], [1, 1, 1, 1, 0] ] zero_matrix(m) assert m == [ [1, 0, 1, 1, 0], [0, 0, 0, 0, 0], [1, 0, 1, 1, 0], [0, 0, 0, 0, 0] ]
true
86fd334b83e5da79823e2858a504ce50d30ac10c
LevanceWam/DPW
/madlib/madlib.py
1,650
4.40625
4
ice_cream = raw_input("What's your flavor: ") print "Tom was walking down the street and wanted a "+ice_cream+" Ice cream cone" friends = ["Monster", "T-Rex", "Jello"] print "Tom's friends wanted Ice cream too and they all had the same amount of money, Tom already has $5.00" for f in friends: print f + ", Has $2.00 on with them." quest = raw_input("Please put in a random word: ") print "The group decided to go to "+quest+ ", for Ice cream" print "At "+quest+" their ultimate Ice cream Sundae cost $25" print "Tom know's that he has money in his piggy bank but can't remember how much was in there but he know's it's no greater than 5" print "Tom's friends also have some extra money but they have $2 less than he has" print "Tom goes and checks the piggy bank" # piggy = raw_input("How much money was in the bank: ") piggy = int(piggy) if 5 < piggy: raw_input("Please check again") else: print "Tom has $" + str(piggy) #function to find how much money toms friends have def all (a): b = a - 2 return b #toms friends money returnb = all(piggy) print "Tom's friends individually have $" + str(returnb) #All of toms friends money all together extra_friend_money_all = int(returnb) * 3 + 6 print extra_friend_money_all tom_money_all = int(piggy) + 5 print "after going counting all of the money Tom had $"+str(tom_money_all)+", and his friends had $"+str(extra_friend_money_all) tom_money_all print "When they added it together it totaled out to $"+str(final_amount) final_amount = int(final_amount) if final_amount < 25 or None: print"Sorry No Ice cream for you" else: print"Yay For Ice Cream"
true
9d9b4d12ab4445af1644d1f29f7dda9c6cfbe32e
spanneerselvam/Marauders-Map
/marauders_map.py
1,750
4.25
4
print("Messers Moony, Wormtail, Padfoot, and Prongs") print("Are Proud to Present: The Marauders Map") print() print("You are fortunate enough to stuble upon this map. Press 'Enter' to continue.") input() name = input("Enter your name: ") input2 = input("Enter your house (gryffindor, ravenclaw, hufflepuff, slytherin): ") if input2 == "gryffindor": print("Ahh, a fellow gryffindor! The best house in Hogwarts and where the brave at heart dwell! Welcome {}!".format(name)) print("Enjoy and remember when your done to give it a tap and say 'Mischief Managed' otherwise anyone can read it!") print("Cheers, Mates!") if input2 == "ravenclaw": print("Oh look what we have here, a snobby Ravenclaw... Praised for your cleverness and wit... Hahaha.") print("Mr. Padfoot wonders if you are all so clever then why was that prat Gilderoy Lockhart a Ravenclaw.") print("Mr. Prongs agrees with Padfoot and believes that you should go on and read a book instead.") if input2 == "hufflepuff": print("Congratulations {}!".format(name)) print("You have come across the mobile version of 'Hogwarts, A History' by Bathilda Bagshot. This is a book concerning Hogwarts School of Witchcraft and Wizardry and its history. Enjoy at your pleasure.") if input2 == "slytherin": print("Mr. Moony presents his compliments to {} and begs {} to keep their abnormally large nose out of other people's business".format(name,name)) print("Mr. Prongs agrees with Mr. Moony and would like to add that {} is an ugly git".format(name)) print("Mr. Padfoot would like to register his astonishment that an idiot like that was even accepted to Hogwarts") print("Mr. Wormtail bids {} good day, and advises {} to wash their hair, the slime-ball".format(name, name))
true
b5ec6c31ea7a394cbbdf7e2b8a0ea42640d8b1d5
nagendrakamath/1stpython
/encapsulation.py
715
4.15625
4
calculation_to_unit = 24 name_of_unit ="hours" user_input = input("please enter number of days\n") def days_to_units(num_of_days): return (f"{num_of_days} days are {num_of_days * calculation_to_unit} {name_of_unit}") def validate(): try: user_input_number = int(user_input) if user_input_number > 0: my_var = days_to_units(user_input_number) print (f"your input is {user_input} days") print(my_var) elif user_input_number == 0: print ("you have enterd Zero, Please correct it") else: print ("you have enterd -ve number, Please correct it") except: print ("Please enter only +ve number") validate()
true
2836cf6c0a9351a3687a244b6034eb760cc2f5ba
pya/PyNS
/pyns/operators/dif_x.py
636
4.1875
4
""" Returns runnig difference in "x" direction of the matrix sent as parameter. Returning matrix will have one element less in "x" direction. Note: Difference is NOT derivative. To find a derivative, you should divide difference with a proper array with distances between elements! """ # ============================================================================= def dif_x(a): # ----------------------------------------------------------------------------- """ Args: a: matrix for differencing. Returns: Matrix with differenced values. """ return (a[1:,:,:] - a[:-1,:,:]) # end of function
true
494cc5b447f85b112110e34dcc16e156f7ff4c2b
raveendradatascience/PYTHON
/Dev_folder/assn85.py
1,334
4.3125
4
#*********************************************************************************# # 8.5 Open the file mbox-short.txt and read it line by line. When you find a line # # that starts with 'From ' like the following line: # # From stephen.marquard@uct.ac.za Sat Jan 5 09:14:16 2008 # # You will parse the From line using split() and print out the second word in # # the line (i.e. the entire address of the person who sent the message). # # Then print out a count at the endself. # # Hint: make sure not to include the lines that start with 'From:'. # # You can download the sample data at http://www.pythonlearn.com/code/mbox-short.txt # # ***********************************************************************************# fname = raw_input("Enter file name: ") # prompts use to enter file name string fh = open(fname) # opens and reads the file name. count = 0 # initialising counter for line in fh: # looping line by line nospln=line.rstrip() # stripping \n character if nospln.startswith("From ") : # finding required line splitwd=nospln.split() # splitting words print splitwd[1] # printing second word count=count+1 print "There were", count, "lines in the file with From as the first word"
true
652e6e20d73239960e48d9dea1ad75ce3a802cca
KaustubhDhokte/python-code-snippets
/deep&shallowCopy.py
1,562
4.4375
4
''' Two types of copy operations are applied to container objects such as lists and dictionaries: a shallow copy and a deep copy. A shallow copy creates a new object but populates it with references to the items contained in the original object. ''' a = [1, 2, [8, 9], 5] print id(a) # Output: 47839472 b = list(a) print b # Output: [1, 2, [8, 9], 5] print id(b) # Output: 47858872 # Object Id changes a[0] = 100 print a # Output: [100, 2, [8, 9], 5] print b # Output: [1, 2, [8, 9], 5] a.append(30) print a # Output: [100, 2, [8, 9], 5, 30] print b # Output: [1, 2, [8, 9], 5] a[1] += 3 print a # Output: [100, 5, [8, 9], 5, 30] print b # Output: [1, 2, [8, 9], 5] a[2][1] = 10 print a # Output: [100, 5, [8, 10], 5, 30] print b # Output: [1, 2, [8, 10], 5] b[2][0] = 11 print a # Output: [100, 5, [11, 10], 5, 30] print b # Output: [1, 2, [11, 10], 5] ''' In this case, a and b are separate list objects, but the elements they contain are shared. Therefore, a modification to one of the elements of a also modifies an element of b, as shown. ''' ''' A deep copy creates a new object and recursively copies all the objects it contains. There is no built-in operation to create deep copies of objects. However, the copy.deepcopy() function in the standard library can be used. ''' import copy a = [1, 2, [3, 4]] b = copy.deepcopy(a) print id(a) # Output: 44433160 print id(b) # Output: 44394576 a[2][1] = 6 print a # Output: [1, 2, [3, 6]] print b # Output: [1, 2, [3, 4]] b[2][0] = 8 print a # Output: [1, 2, [3, 6]] print b # Output: [1, 2, [8, 4]]
true
11692778a4a716519e08e49f5a129ab743542f7d
KaustubhDhokte/python-code-snippets
/closures_TODO.py
475
4.125
4
# https://realpython.com/blog/python/inner-functions-what-are-they-good-for/ ''' def generate_power(number): """ Examples of use: >>> raise_two = generate_power(2) >>> raise_three = generate_power(3) >>> print(raise_two(7)) 128 >>> print(raise_three(5)) 243 """ # define the inner function ... def nth_power(power): return number ** power # ... which is returned by the factory function return nth_power '''
true
444297ec4f122e9e9419dbc4ea56e5d9752bfec3
KaustubhDhokte/python-code-snippets
/metaclasses_TODO.py
2,756
4.3125
4
# https://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python ''' A metaclass is the class of a class. Like a class defines how an instance of the class behaves, a metaclass defines how a class behaves. A class is an instance of a metaclass. ''' ''' When the class statement is executed, Python first executes the body of the class statement as a normal block of code. The resulting namespace (a dict) holds the attributes of the class-to-be. The metaclass is determined by looking at the baseclasses of the class-to-be (metaclasses are inherited), at the __metaclass__ attribute of the class-to-be (if any) or the __metaclass__ global variable. The metaclass is then called with the name, bases and attributes of the class to instantiate it. ''' ''' >>> class MyShinyClass(object): ... pass can be created manually this way: >>> MyShinyClass = type('MyShinyClass', (), {}) # returns a class object >>> print(MyShinyClass) <class '__main__.MyShinyClass'> >>> print(MyShinyClass()) # create an instance with the class <__main__.MyShinyClass object at 0x8997cec> You'll notice that we use "MyShinyClass" as the name of the class and as the variable to hold the class reference. They can be different, but there is no reason to complicate things. type accepts a dictionary to define the attributes of the class. So: >>> class Foo(object): ... bar = True Can be translated to: >>> Foo = type('Foo', (), {'bar':True}) And used as a normal class: >>> print(Foo) <class '__main__.Foo'> >>> print(Foo.bar) True >>> f = Foo() >>> print(f) <__main__.Foo object at 0x8a9b84c> >>> print(f.bar) True And of course, you can inherit from it, so: >>> class FooChild(Foo): ... pass would be: >>> FooChild = type('FooChild', (Foo,), {}) >>> print(FooChild) <class '__main__.FooChild'> >>> print(FooChild.bar) # bar is inherited from Foo True Eventually you'll want to add methods to your class. Just define a function with the proper signature and assign it as an attribute. >>> def echo_bar(self): ... print(self.bar) ... >>> FooChild = type('FooChild', (Foo,), {'echo_bar': echo_bar}) >>> hasattr(Foo, 'echo_bar') False >>> hasattr(FooChild, 'echo_bar') True >>> my_foo = FooChild() >>> my_foo.echo_bar() True And you can add even more methods after you dynamically create the class, just like adding methods to a normally created class object. >>> def echo_bar_more(self): ... print('yet another method') ... >>> FooChild.echo_bar_more = echo_bar_more >>> hasattr(FooChild, 'echo_bar_more') True You see where we are going: in Python, classes are objects, and you can create a class on the fly, dynamically. This is what Python does when you use the keyword class, and it does so by using a metaclass. '''
true
5193aded8a6ba9ce63f4104567bd714ab6b19887
jqnv/python_challenges_Bertelsmann_Technology_Scholarship
/caesar_cipher.py
2,421
4.53125
5
# Option 1 Difficulty Level: Elementary: One of the first known # examples of encryption was used by Julius Caesar. Caesar needed # to provide written instructions to his generals, but he didn’t want # his enemies to learn his plans if the message slipped into their hands. # As result, he developed what later became known as the Caesar Cipher. # The idea behind this cipher is simple (and as a result, it provides # no protection against modern code breaking techniques). Each letter in the # original # message is shifted by 3 places. As a result, A becomes D, # B becomes E, C becomes F, D becomes G, etc. The last three letters in the alphabet # are wrapped around to the beginning: X becomes A, Y becomes B and Z becomes C. # Non-letter characters are not modified by the cipher. Write a program that # implements a Caesar cipher. Allow the user to supply the message and the # shift amount, and then display the shifted message. Ensure that your program # encodes both uppercase and lowercase letters. Your program should also support # negative shift values so that it can be used both to encode messages and decode # messages. (please see the attached image for more detail) import string from itertools import chain def caesar_cipher(): message = input("Please enter the message to code: ") shift = int(input("Please enter the shift to code: ")) alpha_low = list(string.ascii_lowercase) alpha_upp = list(string.ascii_uppercase) alpha_low.extend(alpha_upp) if shift >= 0: low_a, low_z, upp_a, upp_z = ord("a") + shift, ord("z") + 1, ord("A") + shift, ord("Z") + 1 code_low = list(chain(range(low_a, low_z), range(ord("a"), low_a))) code_upp = list(chain(range(upp_a, upp_z), range(ord("A"), upp_a))) else: low_a, low_z, upp_a, upp_z = ord("a"), ord("z") + shift + 1, ord("A"), ord("Z") + shift + 1 code_low = list(chain(range(low_z, ord("z") + 1), range(low_a, low_z))) code_upp = list(chain(range(upp_z, ord("Z") + 1), range(upp_a, upp_z))) print(code_low) code_low.extend(code_upp) code_iter = dict(zip(alpha_low, code_low)) print(code_iter) coded_list = [] for i in message: if ("a" <= i <= "z") or ("A" <= i <= "Z"): coded_list.append(chr(code_iter.get(i))) else: coded_list.append(i) coded_message = ''.join(coded_list) print(coded_message) caesar_cipher()
true
f88cd2ec59b884787116eb60c476374990109b9b
jqnv/python_challenges_Bertelsmann_Technology_Scholarship
/unique_characters.py
1,124
4.40625
4
# Create a program that determines and displays the number of unique characters in a string entered by the user. # For example, Hello, World! has 10 unique characters while zzz has only one unique character. Use a dictionary or # set to solve this problem def unique_characters(text): # Solution using dictionary dictionary_solution(text) # Solution using set set_solution(text) def dictionary_solution(text): # Declare an empty dictionary my_dict = {} # Fill the dictionary with unique characters for i in text: my_dict.update({i: 0}) # Print unique characters in an ascendant order list print(f"Solution using a dictionary: {sorted(list(my_dict.keys()))} {len(my_dict)} unique characters") def set_solution(text): # Convert test to set to get unique characters solution1 = set(text) # Print unique characters in an ascendant order list print(f"Solution using a set: \t\t {sorted(list(solution1))} {len(solution1)} unique characters") if __name__ == '__main__': unique_characters(input("Please enter the sentence to get unique characters: "))
true
34e456552f63f881b56f9e06e924cbc6c4528d4b
jqnv/python_challenges_Bertelsmann_Technology_Scholarship
/license_plate.py
1,408
4.59375
5
#License plate #Option 1 Difficulty Level: Elementary: In a particular jurisdiction, # older license plates consist of three uppercase letters followed by three numbers. # When all of the license plates following that pattern had been used, the format was # changed to four numbers followed by three uppercase #letters. Write a program that begins by reading a string of characters from the user. # Then your program should display a message indicating whether the characters # are valid for an older style license plate or a newer style license plate. # Your program should display an appropriate message if the string entered by the user # is not valid for either style of license plate. def valid_plate(): plate_input=input("Please enter the license plate: ") if len(plate_input)==6: letters, numbers=plate_input[:3], plate_input[3:] valid_style(letters, numbers, plate_input) elif len(plate_input)==7: numbers, letters = plate_input[:4], plate_input[4:] valid_style(letters, numbers, plate_input) else: print(f"The plate {plate_input} is not a valid stYle for a license plate") def valid_style(letters, numbers, plate_input): if letters.isupper() and numbers.isdigit(): print(f"Plate {plate_input} is an valid style of plate") else: print(f"The plate {plate_input} is not a valid stYle for a license plate") valid_plate()
true
b01a758c609d2701d59a74f7bf019c7c4bd9f608
jqnv/python_challenges_Bertelsmann_Technology_Scholarship
/calc.py
1,676
4.53125
5
# For this exercise I want you to write a function (calc) that expects a single argument -a string containing # a simple math expression in prefix notation- with an operators and two numbers, your program will parse the input # and will produce the appropriate output. For our purposes is enough to handle the six basic arithmetic operations # in Python: addition, substraction, multiplication, division(/), modulus(%), and exponentiation(**). The normal Python # math rules should work, such that division always result in a floating-point number. # We will assume for our purposes that the argument will only contain one of our six operators and two valid numbers. # But wait there is a catch -or a hint, if you prefer: you should implement each of the operations in a single function- # and you shouldn't use an if statement to decide which function should be run. Another hint: look at the operator module # whose functions implements many of the Python's operators def calc(text): op, num1, num2 = text.split() oper = {"+": add, "-": sub, "*": mul, "/": div, "%": mod, "**": pow} first=int(num1) second=int(num2) return oper[op](first,second) # Another option is just to reorder the expresion and evaluate it def calc2(text): op, num1, num2 = text.split() return eval(num1+op+num2) def add(num1, num2): return num1 + num2 def sub(num1, num2): return num1 - num2 def mul(num1, num2): return num1 * num2 def div(num1, num2): return num1 / num2 def mod(num1, num2): return num1 % num2 def pow(num1, num2): return num1 ** num2 if __name__ == '__main__': print(calc("/ 10 5")) print(calc2("/ 10 5"))
true
76fddfefedace4aca36548cbc3b6f2ab6f9d3188
jqnv/python_challenges_Bertelsmann_Technology_Scholarship
/reverse_lines.py
814
4.3125
4
# In this function, we do a basic version of this idea. The function takes two arguments: the names of the input # file (to be read from) and the output file (which will be created). def reverse_lines(orig_f, targ_f): # Read original file storing one line at the time with open(orig_f, mode="r") as f_input: for line in f_input: # Reverse the line and adding new line at the end line = line.rstrip()[::-1] + "\n" # Write every reversed line to a new target file with open(targ_f, mode="a") as f_output: f_output.write(line) if __name__ == '__main__': # Declaring the names of the files to be send as parameters in the function orig_file = "orig_f.txt" targ_file = "targ_f.txt" reverse_lines(orig_file, targ_file)
true
b8ceabe1af9f24f1acb694641f32f61c05ca34a6
jqnv/python_challenges_Bertelsmann_Technology_Scholarship
/dice_simulation.py
2,603
4.53125
5
# In this exercise you will simulate 1,000 rolls of two dice. Begin by writing a function that simulates rolling # a pair of six-sided dice. Your function will not take any parameters. It will return the total that was rolled on # two dice as its only result. # Write a main program that uses your function to simulate rolling two six-sided dice 1,000 times. As your program runs, # it should count the number of times that each total occurs. Then it should display a table that summarizes this data. # Express the frequency for each total as a percentage of the total number of rolls. Your program should also display # the percentage expected by probability theory for each total. Sample output is shown below from random import randint def dice_simulation(): # Create a blank dictionary my_dict = {} # Fill the dictionary with the possible total as keys for i in range(2, 13): my_dict.update({str(i): 0}) # Initialize variables to count the occurrences of each total v_2, v_3, v_4, v_5, v_6, v_7, v_8, v_9, v_10, v_11, v_12 = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 # Simulate 2 dices rolling for i in range(1000): dice1 = randint(1, 6) dice2 = randint(1, 6) # Increase each variable according to the total obtained if dice1 + dice2 == 2: v_2 += 1 if dice1 + dice2 == 3: v_3 += 1 if dice1 + dice2 == 4: v_4 += 1 if dice1 + dice2 == 5: v_5 += 1 if dice1 + dice2 == 6: v_6 += 1 if dice1 + dice2 == 7: v_7 += 1 if dice1 + dice2 == 8: v_8 += 1 if dice1 + dice2 == 9: v_9 += 1 if dice1 + dice2 == 10: v_10 += 1 if dice1 + dice2 == 11: v_11 += 1 if dice1 + dice2 == 12: v_12 += 1 # Filling the dictionary with a list as value my_dict.update({"2": [v_2 / 1000 * 100, 2.78]}) my_dict.update({"3": [v_3 / 1000 * 100, 5.56]}) my_dict.update({"4": [v_4 / 1000 * 100, 8.33]}) my_dict.update({"5": [v_5 / 1000 * 100, 11.11]}) my_dict.update({"6": [v_6 / 1000 * 100, 13.89]}) my_dict.update({"7": [v_7 / 1000 * 100, 16.67]}) my_dict.update({"8": [v_8 / 1000 * 100, 13.89]}) my_dict.update({"9": [v_9 / 1000 * 100, 11.11]}) my_dict.update({"10": [v_10 / 1000 * 100, 8.33]}) my_dict.update({"11": [v_11 / 1000 * 100, 5.56]}) my_dict.update({"12": [v_12 / 1000 * 100, 2.78]}) # Print the table print(f"Total\tSimulated\tExpected") print(f"\t\tPercent\t\tPercent") for k, v in my_dict.items(): print(f"{k}\t\t{format(v[0], '.2f')}\t\t{v[1]}") if __name__ == '__main__': dice_simulation()
true
d52add20d1d0518c2c3fb82ce15f9015ce91890f
jqnv/python_challenges_Bertelsmann_Technology_Scholarship
/vowel_consonant.py
856
4.46875
4
# Option 2: Difficulty Level: Pre-Intermediate: In this exercise # you will create a program that reads a letter of the alphabet from the user. # If the user enters a, e, i, o or u then your program should display a message # indicating that the entered letter is a vowel. If the user enters y # then your program should display a message indicating that sometimes y is a vowel, # and sometimes y is a consonant. Otherwise your program should display a message # indicating that the letter is a consonant. def vowel_consonant(str): if str == "a" or str == "e" or str == "i" or str == "o" or str == "u": print("The entered letter is a vowel") elif str == "y": print("Sometimes is a vowel, and sometimes is a consonant") else: print("The entered letter is a consonant") vowel_consonant(input("Please enter a letter"))
true
f52eb17ccbdecf837794acd87b21ee422bbdf6c5
ak-alam/Python_Problem_Solving
/secondLargestNumberFromList/main.py
286
4.21875
4
''' For a list, find the second largest number in the list. ''' lst = [1,3,9,3,7,4,5] largest = lst[0] sec_largest = lst[0] for i in lst: if i > largest: largest = sec_largest largest = i elif i > sec_largest: sec_largest = i print(f'Largest Number: {sec_largest}')
true