title stringlengths 10 172 | question_id int64 469 40.1M | question_body stringlengths 22 48.2k | question_score int64 -44 5.52k | question_date stringlengths 20 20 | answer_id int64 497 40.1M | answer_body stringlengths 18 33.9k | answer_score int64 -38 8.38k | answer_date stringlengths 20 20 | tags list |
|---|---|---|---|---|---|---|---|---|---|
python3 print to string | 39,823,303 | <p>Using Python 3, I have a console application that I am porting to a GUI. The code has a bunch of print statements, something like this:</p>
<p><code>print(' ', 'p', ' ', sep='', end='')</code></p>
<p>(In actuality the positional parameters are actually returns from functions, and there may be more or less than 3, ... | 0 | 2016-10-03T01:06:29Z | 39,823,534 | <p>Found the answer via string io. With this I don't have to emulate Print's handling of sep/end or even check for existence.</p>
<pre><code>import io
def print_to_string(*args, **kwargs):
output = io.StringIO()
print(*args, file=output, **kwargs)
contents = output.getvalue()
output.close()
retur... | 0 | 2016-10-03T01:46:21Z | [
"python",
"string",
"python-3.x",
"stringio"
] |
How to change rows to columns by date in pandas? | 39,823,323 | <p>I have a csv data file in following format, I want to change the rows to columns , but this conversion needs to be done per stock and per date.</p>
<pre><code>Ticker,Indicator,Date,Value
STOCK A,ACCRUALS,3/31/2005,-10.44
STOCK A,ACCRUALS,3/31/2006,0.44
STOCK A,AE,3/31/2005,3.97
STOCK A,AE,3/31/2006,3.67
STOCK A,ASE... | 0 | 2016-10-03T01:09:39Z | 39,823,373 | <pre><code>Ticker,Indicator,Date,Value
STOCK A,ACCRUALS,3/31/2005,-10.44
STOCK A,ACCRUALS,3/31/2006,0.44
STOCK A,AE,3/31/2005,3.97
STOCK A,AE,3/31/2006,3.67
STOCK A,ASETTO,3/31/2005,0.762
STOCK A,ASETTO,3/31/2006,0.9099
</code></pre>
<p>Let's just say your data are in a dataframe called <code>df</code>:</p>
<pre><cod... | 0 | 2016-10-03T01:21:06Z | [
"python",
"pandas"
] |
Asking user to plot two columns in a csv file without him typing the entire column name? | 39,823,350 | <p>My current code:</p>
<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>import pandas as pd
df = pd.DataFrame.from_csv('data.csv',index_col=False)
while True:
... | -1 | 2016-10-03T01:16:57Z | 39,823,417 | <p>One way to do is to use filter in pandas for that purpose.</p>
<pre><code>df.filter(regex=(yaxis))
</code></pre>
<p>It will display all the columns matching that substring of yaxis</p>
<p>here is an example.</p>
<pre><code>A = { 'Name': [ 'John', 'Andrew', 'Smith'] , 'Age' : [20,23,42]}
A
Out[19]: {'Age': [20, ... | 0 | 2016-10-03T01:27:37Z | [
"python",
"pandas"
] |
How to return different types of arrays? | 39,823,371 | <p>The high level problem I'm having in C# is to make a single copy of a data structure that describes a robot control network packet (Ethercat), and then to use that single data structure to extract data from a collection of packets. </p>
<p>The problem arises when attempting to use the data from the accumulated pac... | -1 | 2016-10-03T01:20:26Z | 39,901,281 | <p>The answer is to store the arrays in a collection of type <code>List<dynamic></code></p>
<p>The return type of function that returns elements from the collection should also be dynamic.</p>
<p>Here is the <a href="http://stackoverflow.com/a/39901046/4462371">more complete answer</a> to my <a href="http://sta... | 0 | 2016-10-06T16:32:08Z | [
"c#",
"python",
"arrays",
"data-structures",
"strong-typing"
] |
Callback URL error when setting up webhook for messenger | 39,823,415 | <p>I'm trying to follow this <a href="https://blog.hartleybrody.com/fb-messenger-bot/" rel="nofollow">tutorial</a> to set a chatbot for messenger. I'm stuck on the webhook setup. I added the page token and verify token to heroku, but when I try to add the heroku URL as the callback URL I get </p>
<blockquote>
<p>The... | -1 | 2016-10-03T01:27:23Z | 39,842,513 | <p>The problem was the <code>PAGE_ACCESS_TOKEN</code> and <code>VERIFY_TOKEN</code> were not set. The tutorial said to use the command <code>heroku config:add</code> the correct command should be <code>heroku config:set</code>. </p>
| 0 | 2016-10-04T00:35:44Z | [
"python",
"facebook",
"bots"
] |
Getting PostgreSQL percent_rank and scipy.stats.percentileofscore results to match | 39,823,470 | <p>I'm trying to QAQC the results of calculations that are done in a PostgreSQL database, using a python script to read in the inputs to the calculation and echo the calculation steps and compare the final results of the python script against the results from the PostgreSQL calculation. </p>
<p>The calculations in the... | 1 | 2016-10-03T01:35:44Z | 39,824,105 | <p>You can use <a href="http://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.rankdata.html" rel="nofollow"><code>scipy.stats.rankdata</code></a>. The following example reproduces the result shown at <a href="http://docs.aws.amazon.com/redshift/latest/dg/r_WF_PERCENT_RANK.html" rel="nofollow">http://docs.aws... | 2 | 2016-10-03T03:12:36Z | [
"python",
"postgresql",
"scipy",
"rank",
"percentile"
] |
I can not get my loop to end | 39,823,570 | <p>I am trying to create a higher or lower game in python but can't get my loop to end. it just keeps going. My code looks like this</p>
<pre><code>a = 0
def ask(b, d, p):
global a
while a < d:
global question
question = int(input())
if question < b:
print"bigger"
... | -4 | 2016-10-03T01:51:18Z | 39,823,913 | <p>Without knowing what the rest of the code is here is what I can offer.</p>
<p>In the code provided you have <code>d1 == p1</code> but they are never called or assigned in that area so they will never change. Therefore your loop can never progress because they variables inside it do not control it.</p>
<p>edit: I'm... | 0 | 2016-10-03T02:42:14Z | [
"python",
"python-2.7"
] |
List comprehensions Conversion | 39,823,593 | <p>i started learning Python recently and i am facing difficulty converting the below piece of code into a list comprehension:</p>
<pre><code> list = [] #An empty List
for key,value in defaultDict.items():#iterate through the default dict
for i in defaultDict[key]:#iterate through the list in the de... | 1 | 2016-10-03T01:54:10Z | 39,823,607 | <p>Very straightforward: use a nested list comprehension to get all <code>i</code>s and a set to remove duplicates.</p>
<pre><code>list(set([item for __, value in defaultDict.items() for item in value]))
</code></pre>
<p>Let's break it down:</p>
<ul>
<li><code>[item for key,value in defaultDict.items() for item in v... | 4 | 2016-10-03T01:56:00Z | [
"python",
"list",
"list-comprehension",
"defaultdict"
] |
creating sum of odd indexes python | 39,823,625 | <p>I'm trying to create a function equal to the sum of every other digit in a list. For example, if the list is [0,1,2,3,4,5], the function should equal 5+3+1. How could I do this? My knowledge of Python does not extend much farther than while and for loops. Thanks. </p>
| 1 | 2016-10-03T01:58:31Z | 39,823,637 | <p>Here is a simple one-liner:</p>
<pre><code>In [37]: L
Out[37]: [0, 1, 2, 3, 4, 5]
In [38]: sum(L[1::2])
Out[38]: 9
</code></pre>
<p>In the above code, <code>L[1::2]</code> says "get ever second element in <code>L</code>, starting at index 1"</p>
<p>Here is a way to do all the heavy lifting yourself:</p>
<pre><c... | 5 | 2016-10-03T02:00:33Z | [
"python",
"for-loop",
"while-loop",
"sum"
] |
creating sum of odd indexes python | 39,823,625 | <p>I'm trying to create a function equal to the sum of every other digit in a list. For example, if the list is [0,1,2,3,4,5], the function should equal 5+3+1. How could I do this? My knowledge of Python does not extend much farther than while and for loops. Thanks. </p>
| 1 | 2016-10-03T01:58:31Z | 39,823,675 | <pre><code>>>> arr = [0,1,2,3,4,5]
>>> sum([x for idx, x in enumerate(arr) if idx%2 != 0])
9
</code></pre>
<p>This is just a list comprehension that only includes elements in <code>arr</code> that have an odd index.</p>
<p>To illustrate in a traditional <code>for</code> loop:</p>
<pre><code>>>... | 0 | 2016-10-03T02:04:58Z | [
"python",
"for-loop",
"while-loop",
"sum"
] |
Error pwd.getpwuid with google cloud storage | 39,823,682 | <p>I <code>pip install --upgrade google-cloud-storage -t libs</code> to my app engine app.</p>
<p>In the appengine_config.py, I added: </p>
<pre><code>vendor.add('libs')
vendor.add(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'libs'))
</code></pre>
<p>It works on app engine online, but not on app engine... | 1 | 2016-10-03T02:05:38Z | 39,824,494 | <p>Not sure if this entirely answers your question, however, I am assuming that you are using <a href="https://cloud.google.com/appengine/docs/python/download" rel="nofollow">Google App Engine SDK</a> to launch the app locally on your machine. And this, uses a patched <code>os</code> module for sandboxing:</p>
<pre><c... | 2 | 2016-10-03T04:07:45Z | [
"python",
"google-app-engine",
"google-cloud-storage"
] |
python: list of lists of matching dicts | 39,823,688 | <p>I have a few dicts like:</p>
<p><code>a = [ { 'event_id': 1}, { 'event_id': 1}, { 'event_id': 1}, { 'event_id': 2}, { 'event_id': 2}, { 'event_id': 3} ]</code></p>
<p>I want a list of lists, each sublist containing all the dicts with similar <code>event_id</code> values:</p>
<p><code>[ [ { 'event_id': 1}, { 'even... | 1 | 2016-10-03T02:07:01Z | 39,823,731 | <p><code>itertools.groupby</code> is perfect for this:</p>
<pre><code>map(lambda x: list(x[1]), (itertools.groupby(a, lambda x: x['event_id'])))
# => [[{'event_id': 1}, {'event_id': 1}, {'event_id': 1}], [{'event_id': 2}, {'event_id': 2}], [{'event_id': 3}]]
</code></pre>
<p>EDIT: As Justin Turner Arthur says in c... | 2 | 2016-10-03T02:12:15Z | [
"python"
] |
python: list of lists of matching dicts | 39,823,688 | <p>I have a few dicts like:</p>
<p><code>a = [ { 'event_id': 1}, { 'event_id': 1}, { 'event_id': 1}, { 'event_id': 2}, { 'event_id': 2}, { 'event_id': 3} ]</code></p>
<p>I want a list of lists, each sublist containing all the dicts with similar <code>event_id</code> values:</p>
<p><code>[ [ { 'event_id': 1}, { 'even... | 1 | 2016-10-03T02:07:01Z | 39,823,739 | <p>First, make a dictionary mapping <code>event_id</code> values to lists of dicts.</p>
<pre><code>d = {}
for dict_ in a:
if dict_['event_id'] in d:
d[dict_['event_id']].append(dict_)
else:
d[dict['event_id']] = [dict_]
</code></pre>
<p>Then make a list comprehension to gather them all into on... | 0 | 2016-10-03T02:13:12Z | [
"python"
] |
python: list of lists of matching dicts | 39,823,688 | <p>I have a few dicts like:</p>
<p><code>a = [ { 'event_id': 1}, { 'event_id': 1}, { 'event_id': 1}, { 'event_id': 2}, { 'event_id': 2}, { 'event_id': 3} ]</code></p>
<p>I want a list of lists, each sublist containing all the dicts with similar <code>event_id</code> values:</p>
<p><code>[ [ { 'event_id': 1}, { 'even... | 1 | 2016-10-03T02:07:01Z | 39,837,004 | <p>As <a href="http://stackoverflow.com/a/39823731/1843865">amadan suggests</a>, <code>itertools.groupby</code> is a great approach to this problem. It takes an iterable and a key function to group by. You'll first want to make sure your list is sorted by the same key so that groupby doesn't end up creating multiple gr... | 2 | 2016-10-03T17:19:30Z | [
"python"
] |
Python Image Processing Threading | 39,823,742 | <p>so I am working on a robotics project where we have to recognize a pattern on a wall and position our robot accordingly. I developed this image processing code on my laptop that grabbed an image, converted it to HSV, applied a bit-wise mask, used Canny edge Detection, and found contours. I thought I could just copy ... | 1 | 2016-10-03T02:13:24Z | 39,824,403 | <p>You can profile the code using <code>cProfile</code> module. It will tell you what part of the program is the bottleneck.</p>
<p>Python in CPython implementation has the Global Interpreter Lock (GIL). This means that even if your app is multithreaded, it will use only one of your CPUs. You can try <code>multiproces... | 1 | 2016-10-03T03:56:57Z | [
"python",
"multithreading",
"python-3.x",
"image-processing",
"python-multithreading"
] |
Catching Keypresses on Windows with Python using MSVCRT when terminal window not in Focus | 39,823,758 | <p>I want to be able to use the <code>msvcrt</code> package in python to catch keypresses via the <code>msvcrt.getch()</code> method but it appears the the terminal window needs to be in focus for it to work. Is there a way around this?</p>
| 0 | 2016-10-03T02:15:02Z | 39,843,157 | <p>I found a python wrapper for Ctypes as suggested by @IInspectable. It wraps the low_level Keyboard hooks with a nice monitor class.</p>
<p><a href="https://github.com/ethanhs/pyhooked" rel="nofollow">https://github.com/ethanhs/pyhooked</a></p>
| 0 | 2016-10-04T02:10:49Z | [
"python",
"windows",
"keypress",
"msvcrt",
"getch"
] |
haskell: recursive function that return the char in a tuple list with certain condition(compare) | 39,823,833 | <p>I'm learning recursive function in haskell that confused with such conditon:</p>
<p>I got a tuple list here:</p>
<pre><code>[(0.5,'!'),(1,'*'),(1.5,'#')]
</code></pre>
<p>What I want to do is input a number n and compare with fist number in each tuple of the list</p>
<p>so suppose n=0.1, when it compared 0.5 and... | 0 | 2016-10-03T02:27:55Z | 39,823,923 | <p><a href="https://en.wikibooks.org/wiki/Haskell/Lists_and_tuples" rel="nofollow">tuple</a> is different from array in Haskell</p>
<pre><code>find :: Double -> [(Double,Char)] -> Char
find d [] = ' '
find d (x:xs)
| d <= fst x = snd x
| otherwise = find d xs
</code></pre>
| 3 | 2016-10-03T02:43:30Z | [
"python",
"haskell"
] |
Python Tkinter Display Loading Animation While Performing Certain Tasks | 39,823,834 | <p>I have located this useful code for Tkinter animations from <a href="https://www.daniweb.com/programming/software-development/threads/396918/how-to-use-animated-gifs-with-tkinter" rel="nofollow">https://www.daniweb.com/programming/software-development/threads/396918/how-to-use-animated-gifs-with-tkinter</a> ,suppl... | 0 | 2016-10-03T02:28:19Z | 39,827,771 | <p>You can use <code>Tk.after()</code> and <code>Tk.after_cancel()</code> to start and stop the animation:</p>
<pre><code>timer_id = None
def start_loading(n=0):
global timer_id
gif = giflist[n%len(giflist)]
canvas.create_image(gif.width()//2, gif.height()//2, image=gif)
timer_id = root.after(100, sta... | 0 | 2016-10-03T08:54:21Z | [
"python",
"animation",
"tkinter"
] |
both tow are unicode,but when compare,it doesn't workï¼ | 39,823,844 | <pre><code># -*- coding: utf-8 -*-
from bs4 import BeautifulSoup
import urllib2
response = urllib2.urlopen('http://bbs.szhome.com/80300-0-0-0-3005.html')
html = response.read()
soup = BeautifulSoup(html)
returntext = soup.find('dl',class_='fix').text
print returntext
if isinstance(returntext,unicode):
print... | 0 | 2016-10-03T02:30:06Z | 39,823,871 | <p>You need to <a href="https://docs.python.org/2/library/string.html#string.strip" rel="nofollow">strip</a> all newlines before comparison:</p>
<pre><code>>>> print returntext
ææ ç¸å
³æ°æ®...
>>> print text
ææ ç¸å
³æ°æ®...
>>> returntext
u'\n\u6682\u65e0\u76f8\u5173\u6570\u636... | 1 | 2016-10-03T02:35:32Z | [
"python",
"unicode"
] |
both tow are unicode,but when compare,it doesn't workï¼ | 39,823,844 | <pre><code># -*- coding: utf-8 -*-
from bs4 import BeautifulSoup
import urllib2
response = urllib2.urlopen('http://bbs.szhome.com/80300-0-0-0-3005.html')
html = response.read()
soup = BeautifulSoup(html)
returntext = soup.find('dl',class_='fix').text
print returntext
if isinstance(returntext,unicode):
print... | 0 | 2016-10-03T02:30:06Z | 39,824,084 | <p>They aren't both unicode, they just look that way to you because your display decodes text2 for you. In fact, <code>isinstance(text2,str)</code> shows that text2 is clearly a string, not unicode. </p>
<p>Unicode was bolted onto python 2 and its usage is a little strange. <code>str</code> can hold any octet (typical... | 0 | 2016-10-03T03:09:13Z | [
"python",
"unicode"
] |
Convert part of data frame into MultiIndex in Pandas | 39,823,852 | <p>I am having this form of data in XLS format:</p>
<pre><code>+--------+---------+-------------+---------------+---------+
| ID | Branch | Customer ID | Customer Name | Balance |
+--------+---------+-------------+---------------+---------+
| 111111 | Branch1 | 1 | Company A | 10 |
+--------+--... | 1 | 2016-10-03T02:31:58Z | 39,824,870 | <p>If need only <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.set_index.html" rel="nofollow"><code>set_index</code></a> and <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.sort_index.html" rel="nofollow"><code>sort_index</code></a>, use:</p>
<pre><code>... | 1 | 2016-10-03T05:04:53Z | [
"python",
"pandas",
"xls"
] |
How to draw right angled triangle with python | 39,823,862 | <pre><code>def drawTri(a):
b = (a*math.tan(45))
c = (a/math.cos(45))
t.forward(a)
t.left(135)
t.forward(c)
t.left(135)
t.forward(b)
</code></pre>
<p><img src="http://i.stack.imgur.com/anF4W.png" alt="enter image description here"></p>
| 0 | 2016-10-03T02:33:44Z | 39,823,898 | <pre><code>import turtle
def drawTri(a):
hyp = a * 2**0.5
s = turtle.Screen()
t = turtle.Turtle()
t.forward(a)
t.left(135)
t.forward(hyp)
t.left(135)
t.forward(a)
</code></pre>
| 0 | 2016-10-03T02:39:34Z | [
"python",
"turtle-graphics"
] |
How to draw right angled triangle with python | 39,823,862 | <pre><code>def drawTri(a):
b = (a*math.tan(45))
c = (a/math.cos(45))
t.forward(a)
t.left(135)
t.forward(c)
t.left(135)
t.forward(b)
</code></pre>
<p><img src="http://i.stack.imgur.com/anF4W.png" alt="enter image description here"></p>
| 0 | 2016-10-03T02:33:44Z | 39,880,887 | <p>The problem here is close to that described in <a href="http://stackoverflow.com/questions/32980003/basic-trigonometry-isnt-working-correctly-in-python/32980217">Basic trigonometry isn't working correctly in python</a></p>
<p>The turtle module uses degrees for angles, the math module uses radians</p>
<p>To cal... | 0 | 2016-10-05T18:05:49Z | [
"python",
"turtle-graphics"
] |
How to draw right angled triangle with python | 39,823,862 | <pre><code>def drawTri(a):
b = (a*math.tan(45))
c = (a/math.cos(45))
t.forward(a)
t.left(135)
t.forward(c)
t.left(135)
t.forward(b)
</code></pre>
<p><img src="http://i.stack.imgur.com/anF4W.png" alt="enter image description here"></p>
| 0 | 2016-10-03T02:33:44Z | 39,906,499 | <p>Who needs angles?</p>
<pre><code>def drawTri(a):
x, y = turtle.position()
turtle.goto(x + a, 0)
turtle.goto(0, y + a)
turtle.goto(x, y)
</code></pre>
| 0 | 2016-10-06T22:20:55Z | [
"python",
"turtle-graphics"
] |
Splitting sentences using nltk.sent_tokenize, it does not provide correct result | 39,823,863 | <p>I am trying to split some customers' comments to sentences using <code>nltk.sent_tokenize</code>. I already tried to solve some of the problems using the following code: </p>
<pre><code>comment = comment.replace('?', '? ').replace('!', '! ').replace('..','.').replace('.', '. ')
</code></pre>
<p>But I do not know h... | 0 | 2016-10-03T02:33:46Z | 39,845,063 | <p>Try using the Punkt Sentence Tokenizer. It is pre-trained to split sentences effectively and can easily be pickled into your code.</p>
| 0 | 2016-10-04T05:54:52Z | [
"python",
"nlp",
"nltk"
] |
beautiful soup vs espn | 39,823,864 | <p>I'm working on scraping the espn nhl stats using beautifulsoup, trying to create something like</p>
<blockquote>
<p>PLAYER, TEAM, GP, G, A, PTS, +/-, PIM, PTS/G, SOG, PCT, GWG, G, A, G, A,</p>
<p>Patrick Kane, RW, CHI, 82, 46, 60, 106, 17, 30, 1.29, 287, 16.0, 9, 17,... | 0 | 2016-10-03T02:33:47Z | 39,824,573 | <p>You could append the player information into a list initially to represent the row and then join the list into a string as you write it to the file:</p>
<pre><code>for tr in soup.select("#my-players-table tr[class*=player]"):
row = []
for ob in range(1,15):
## -- Assuming player_info has the colu... | 0 | 2016-10-03T04:19:27Z | [
"python",
"python-2.7",
"beautifulsoup"
] |
TypeError: Calculating dot product in python | 39,823,879 | <p>I need to write a Python function that returns the sum of the pairwise products of listA and listB (the two lists will always have the same length and are two lists of integer numbers).</p>
<p>For example, if listA = [1, 2, 3] and listB = [4, 5, 6], the dot product is 1*4 + 2*5 + 3*6, so the function should return:... | 1 | 2016-10-03T02:36:48Z | 39,823,889 | <p>Remove the offending portion (attempting to subscript an int):</p>
<pre><code>sum([listA[i]*listB[i] for i in range(len(listB))])
</code></pre>
| 1 | 2016-10-03T02:38:23Z | [
"python",
"function",
"python-3.x",
"typeerror",
"dot-product"
] |
TypeError: Calculating dot product in python | 39,823,879 | <p>I need to write a Python function that returns the sum of the pairwise products of listA and listB (the two lists will always have the same length and are two lists of integer numbers).</p>
<p>For example, if listA = [1, 2, 3] and listB = [4, 5, 6], the dot product is 1*4 + 2*5 + 3*6, so the function should return:... | 1 | 2016-10-03T02:36:48Z | 39,828,058 | <p>Simply remove <code>[0]</code>, and it works:</p>
<p><code>sum( [listA[i]*listB[i] for i in range(len(listB))] )</code></p>
<p>More elegant and readable, do:</p>
<p><code>sum(x*y for x,y in zip(listA,listB))</code></p>
<p>Or even better:</p>
<pre><code>import numpy
numpy.dot(listA, listB)
</code></pre>
| 0 | 2016-10-03T09:11:13Z | [
"python",
"function",
"python-3.x",
"typeerror",
"dot-product"
] |
Installing Ansible via Pip on Windows 7. Getting ValueError | 39,823,998 | <p>Firstly some basic details:</p>
<p>OS: Windows 7 Home x64</p>
<p>Relevant libraries installed: </p>
<p>.NET Framework 4.0, Windows SDK (in order to have visual c++ 2010 compiler)</p>
<p>Python: 3.4 (tried 32 and 64 bit, same issue)</p>
<p>Pip: 6.0.8</p>
<p>I'm trying to install Ansible (via command prompt) but... | 0 | 2016-10-03T02:55:55Z | 39,825,576 | <p>I guess your are on you own here, because there is no support for Python 3 in Ansible yet, neither for Windows as control machine.</p>
<p><a href="http://docs.ansible.com/ansible/intro_installation.html#control-machine-requirements" rel="nofollow">Control Machine Requirements</a>:</p>
<blockquote>
<p>Currently A... | 0 | 2016-10-03T06:23:20Z | [
"python",
"windows",
"pip",
"ansible"
] |
Initiate a call, record it, and play the recording back | 39,824,121 | <p>I am putting together a POC for a client that wants to do phone based testing. In the POC, we simply want to let the user enter a phone# on a web page. We would then display a question and call their number. We would record their response to the question and play it back to them.</p>
<p>I can initiate the call, but... | 0 | 2016-10-03T03:14:59Z | 39,838,183 | <p>Twilio developer evangelist here.</p>
<p>When you create the call, you pass a URL to the call. That URL will be the one called when the user answers the phone. The response to that request should be the <a href="https://www.twilio.com/docs/api/twiml" rel="nofollow">TwiML</a> to instruct Twilio to <a href="https://w... | 1 | 2016-10-03T18:32:29Z | [
"python",
"twilio"
] |
rock scissor paper program | 39,824,145 | <p>Here are code for writing rock scissors paper game in python.
If I run the code, it works but, when it becomes tie, it outputs like this.
Is there anyway I can eliminate print(round) when I get result of tie?
I want to look it like as shown at bottom of example</p>
<p>*********************ROUND #1******************... | 0 | 2016-10-03T03:20:18Z | 39,824,191 | <p>I'd recommend creating a boolean <code>was_tied</code>, setting it to equal <code>False</code> at the start of the program, and setting it to either <code>True</code> or <code>False</code> at the end of each possible outcome. Then you can put your print-round code inside of an <code>if not was_tied</code> statement.... | 0 | 2016-10-03T03:27:29Z | [
"python"
] |
rock scissor paper program | 39,824,145 | <p>Here are code for writing rock scissors paper game in python.
If I run the code, it works but, when it becomes tie, it outputs like this.
Is there anyway I can eliminate print(round) when I get result of tie?
I want to look it like as shown at bottom of example</p>
<p>*********************ROUND #1******************... | 0 | 2016-10-03T03:20:18Z | 39,824,230 | <p>So I think you have a number of areas that could simplify this code, but for a quick solution, at this line: </p>
<pre><code>print('*'*21 + 'ROUND #'+str(rounds) + '*'*21)
print()
</code></pre>
<p>change it to:</p>
<pre><code>if not previous_round_was_tie:
print('*'*21 + 'ROUND #'+str(rounds) + '*'*21)
pr... | 0 | 2016-10-03T03:32:04Z | [
"python"
] |
Python how to convert a value with shape (1000L, 1L) to the value of the shape (1000L,) | 39,824,210 | <p>I has a variable with a shape of (1000L, 1L), but the structure causes some errors for subsequent analysis. It needs to be converted to the one with the shape (1000L,). Let me be more specific. </p>
<pre><code>import numpy as np
a = np.array([1,2,3])
b = np.array([[1],[2],[3]])
</code></pre>
<p>I want to convert b... | 1 | 2016-10-03T03:30:05Z | 39,824,444 | <p>There are a lot of ways you could do that, such as indexing:</p>
<pre><code>a = b[:, 0]
</code></pre>
<p>raveling:</p>
<pre><code>a = numpy.ravel(b)
</code></pre>
<p>or reshaping:</p>
<pre><code>a = numpy.reshape(b, (-1,))
</code></pre>
| 2 | 2016-10-03T04:00:19Z | [
"python",
"numpy"
] |
Having trouble creating a new file and then manipulating its contents | 39,824,263 | <p>My goal is to create a python program that will receive user input to open a specific file, copy the contents of that file into a new file (named by the user), and then remove all spaces and digits from the new file.</p>
<p>I am successfully copying the contents of my 'sequence' file into a newly-created 'newsequen... | 0 | 2016-10-03T03:35:08Z | 39,824,307 | <p>So I think you're making the mistake of writing to the file twice unnecessarily. Instead of writing to the file and then trying to read it and edit it, why don't you change the file while you are transcribing. I would change your function like this:</p>
<pre><code>sequence = open(input("Choose sequence file: "))
na... | 1 | 2016-10-03T03:42:27Z | [
"python"
] |
Having trouble creating a new file and then manipulating its contents | 39,824,263 | <p>My goal is to create a python program that will receive user input to open a specific file, copy the contents of that file into a new file (named by the user), and then remove all spaces and digits from the new file.</p>
<p>I am successfully copying the contents of my 'sequence' file into a newly-created 'newsequen... | 0 | 2016-10-03T03:35:08Z | 39,824,474 | <p>Why don't you do this in one <code>for</code> loop ? </p>
<p>Not tested:</p>
<pre><code>file_in = open(input("Choose sequence file: "))
name = input('Enter name of new text file, without .txt: ') + '.txt'
with open(name, 'a') as file_out:
for line in file_in:
line = ''.join(i for i in line if i.isdig... | 0 | 2016-10-03T04:04:43Z | [
"python"
] |
Multiprocessing and Selenium Python | 39,824,273 | <p>I have 3 drivers (Firefox browsers) and I want them to <code>do something</code> in a list of websites.</p>
<p>I have a worker defined as:</p>
<pre><code>def worker(browser, queue):
while True:
id_ = queue.get(True)
obj = ReviewID(id_)
obj.search(browser)
if obj.exists(browser):... | 4 | 2016-10-03T03:36:18Z | 39,843,502 | <p>You could try instantiating the browser in the worker:</p>
<pre><code>def worker(queue):
browser = webdriver.Chrome()
try:
while True:
id_ = queue.get(True)
obj = ReviewID(id_)
obj.search(browser)
if obj.exists(browser):
print(obj.get_u... | 1 | 2016-10-04T03:02:18Z | [
"python",
"selenium",
"python-multiprocessing"
] |
Replace the first 3 white space coming with a character and ignore other white spaces in a text line with python | 39,824,284 | <p>I have this line text: </p>
<pre><code>09-15-16 05:23:44 A:VCOM 09064 Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>the output should be like this:</p>
<pre><code>09-15-16|05:23:44|A:VCOM|09064|Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>It should just replace the ... | 0 | 2016-10-03T03:37:58Z | 39,824,299 | <p>You don't need regex for that. Just use <code>str.split</code> with a <code>maxsplit</code>:</p>
<pre><code>>>> s = '09-15-16 05:23:44 A:VCOM 09064 Port 4 Device 10400 Remote 1 10401 Link Up RP2009'
>>> *first, last = s.split(maxsplit=4)
>>> '|'.join(first) + '|' + last
'09-15-16|05:2... | 2 | 2016-10-03T03:41:21Z | [
"python",
"regex"
] |
Replace the first 3 white space coming with a character and ignore other white spaces in a text line with python | 39,824,284 | <p>I have this line text: </p>
<pre><code>09-15-16 05:23:44 A:VCOM 09064 Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>the output should be like this:</p>
<pre><code>09-15-16|05:23:44|A:VCOM|09064|Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>It should just replace the ... | 0 | 2016-10-03T03:37:58Z | 39,824,357 | <p>Maybe try something like this: </p>
<pre><code>text = "09-15-16 05:23:44 A:VCOM 09064 Port 4 Device 10400 Remote 1 10401 Link Up RP2009"
text = text.replace(" ", "|", 3)
text = text.replace(" ", "")
text = text.replace(" ", "|", 1)
</code></pre>
| 1 | 2016-10-03T03:50:05Z | [
"python",
"regex"
] |
Replace the first 3 white space coming with a character and ignore other white spaces in a text line with python | 39,824,284 | <p>I have this line text: </p>
<pre><code>09-15-16 05:23:44 A:VCOM 09064 Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>the output should be like this:</p>
<pre><code>09-15-16|05:23:44|A:VCOM|09064|Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>It should just replace the ... | 0 | 2016-10-03T03:37:58Z | 39,824,413 | <p>you can try this</p>
<p>*</p>
<pre><code>str = '09-15-16 05:23:44 A:VCOM 09064 Port 4 Device 10400 Remote 1 10401 Link Up RP2009'
idx=0
newStr =''
for token in str.split(' '):
if(token!=''):
if(idx <4):
newStr=newStr + token+'|'
idx+=1
else:
newStr = n... | 1 | 2016-10-03T03:57:55Z | [
"python",
"regex"
] |
Replace the first 3 white space coming with a character and ignore other white spaces in a text line with python | 39,824,284 | <p>I have this line text: </p>
<pre><code>09-15-16 05:23:44 A:VCOM 09064 Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>the output should be like this:</p>
<pre><code>09-15-16|05:23:44|A:VCOM|09064|Port 4 Device 10400 Remote 1 10401 Link Up RP2009
</code></pre>
<p>It should just replace the ... | 0 | 2016-10-03T03:37:58Z | 39,824,676 | <pre><code>import re
print re.sub(r' +','|',text,4)
</code></pre>
| 0 | 2016-10-03T04:37:27Z | [
"python",
"regex"
] |
How to implement SQL level expression for this hybrid property in SQLAlchemy? | 39,824,292 | <p>I have a ledger table and a corresponding python class.
I defined the model using SQLAlchemy, as follows,</p>
<pre><code>class Ledger(Base):
__tablename__ = 'ledger'
currency_exchange_rate_lookup = {('CNY', 'CAD'): 0.2}
amount = Column(Numeric(10, 2), nullable=False)
currency = Column(String, null... | 0 | 2016-10-03T03:40:09Z | 39,840,780 | <p><code>cls.firstname</code> does not "refer to value", but the <code>Column</code>. <code>cls.firstname + " " + cls.lastname</code> in the <a href="http://docs.sqlalchemy.org/en/latest/orm/mapped_sql_expr.html#using-a-hybrid" rel="nofollow">example</a> produces a string concatenation SQL expression along the lines of... | 1 | 2016-10-03T21:34:39Z | [
"python",
"sqlalchemy",
"descriptor"
] |
Spark problems with imports in Python | 39,824,381 | <p>We are running a spark-submit command on a python script that uses Spark to parallelize object detection in Python using Caffe. The script itself runs perfectly fine if run in a Python-only script, but it returns an import error when using it with Spark code. I know the spark code is not the problem because it works... | 8 | 2016-10-03T03:54:02Z | 40,054,364 | <p>You probably havenât compiled the caffe python wrappers in your AWS environment. For reasons that completely escape me (and several others, <a href="https://github.com/BVLC/caffe/issues/2440" rel="nofollow">https://github.com/BVLC/caffe/issues/2440</a>) pycaffe is not available as a pypi package, and you have to ... | 4 | 2016-10-15T02:33:56Z | [
"python",
"apache-spark",
"pyspark",
"caffe",
"pycaffe"
] |
Replacing Elements in 3 dimensional Python List | 39,824,469 | <p>I've a Python list if converted to NumPy array would have the following dimensions: (5, 47151, 10)</p>
<pre><code>np.array(y_pred_list).shape
# returns (5, 47151, 10)
len(y_pred_list)
# returns 5
</code></pre>
<p>I would like to go through every element and replace the element where:</p>
<ul>
<li>If the element... | 0 | 2016-10-03T04:04:02Z | 39,824,585 | <p>To create an array with a value True if the element is >= 0.5, and False otherwise:</p>
<pre><code>new_array = y_pred_list >= 0.5
</code></pre>
<p>use the .astype() method for Numpy arrays to make all True elements 1 and all False elements 0:</p>
<pre><code>new_array.astype(int)
</code></pre>
| 1 | 2016-10-03T04:21:54Z | [
"python",
"arrays",
"list",
"numpy"
] |
Replacing Elements in 3 dimensional Python List | 39,824,469 | <p>I've a Python list if converted to NumPy array would have the following dimensions: (5, 47151, 10)</p>
<pre><code>np.array(y_pred_list).shape
# returns (5, 47151, 10)
len(y_pred_list)
# returns 5
</code></pre>
<p>I would like to go through every element and replace the element where:</p>
<ul>
<li>If the element... | 0 | 2016-10-03T04:04:02Z | 39,825,191 | <pre><code>arr=np.array(y_pred_list) #list to narray
arr[arr<0.5]=0 # arr<0.5 is a mask narray
arr[arr>=0.5]=1
y_pred_list=arr.tolist() # narray to list
</code></pre>
| -2 | 2016-10-03T05:42:11Z | [
"python",
"arrays",
"list",
"numpy"
] |
Replacing Elements in 3 dimensional Python List | 39,824,469 | <p>I've a Python list if converted to NumPy array would have the following dimensions: (5, 47151, 10)</p>
<pre><code>np.array(y_pred_list).shape
# returns (5, 47151, 10)
len(y_pred_list)
# returns 5
</code></pre>
<p>I would like to go through every element and replace the element where:</p>
<ul>
<li>If the element... | 0 | 2016-10-03T04:04:02Z | 39,827,874 | <p>ibredeson's answer is the way to go in your specific case. When you have an array a and want to construct an array b of the same shape which takes only two values, depending on a condition on a, consider using <code>np.where</code> (see <a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.where.html" ... | 0 | 2016-10-03T09:00:27Z | [
"python",
"arrays",
"list",
"numpy"
] |
Scipy sparse matrix to the power spare matrix | 39,824,486 | <p>I have a scipy.sparse.csc.csc_matrix. I want to use a power function on each element of this matrix such that each element is raise to the power itself. How should I do that?</p>
<p>I tried this:</p>
<pre><code>B.data ** B.data
</code></pre>
<p>But this removes 0 from the data</p>
| 0 | 2016-10-03T04:06:22Z | 39,825,692 | <p>I have no problems with that approach:</p>
<pre><code>In [155]: B=sparse.random(10,10,.1,'csc')
In [156]: B
Out[156]:
<10x10 sparse matrix of type '<class 'numpy.float64'>'
with 10 stored elements in Compressed Sparse Column format>
In [157]: B.data
Out[157]:
array([ 0.79437782, 0.74414493, 0.39... | 1 | 2016-10-03T06:33:03Z | [
"python",
"scipy"
] |
python matplotlib legend linestyle '---' | 39,824,599 | <p>I need a way to make matplotlib linestyle '---'. 3's of '-'.</p>
<pre><code>character description
'-' solid line style
'--' dashed line style
'-.' dash-dot line style
':' dotted line style
etc.
</code></pre>
<p>I can see '-' and '--' in the list, but on the right up side, my legend comes up l... | 0 | 2016-10-03T04:25:24Z | 39,824,845 | <p>Use <code>mpt.legend(handlelength=3)</code> and <code>linestyle='--'</code></p>
<pre><code>mpt.plot([1,2,3,4],[2,3,4,5],'r', linestyle='--')
mpt.legend(["red dotted line"], handlelength=3)
</code></pre>
| 0 | 2016-10-03T05:00:39Z | [
"python",
"matplotlib"
] |
ValueError: Cannot have number of splits n_splits=3 greater than the number of samples: 1 | 39,824,600 | <p>I am trying this training modeling using train_test_split and a decision tree regressor:</p>
<pre><code>import sklearn
from sklearn.model_selection import train_test_split
from sklearn.tree import DecisionTreeRegressor
from sklearn.model_selection import cross_val_score
# TODO: Make a copy of the DataFrame, using ... | 0 | 2016-10-03T04:25:28Z | 39,824,687 | <p>If the number of split is greater than number of sample, you will get the first error. Check the snippet from the <a href="https://github.com/scikit-learn/scikit-learn/blob/master/sklearn/model_selection/_split.py#L315" rel="nofollow">source code</a> given below.</p>
<pre><code>if self.n_splits > n_samples:
... | 0 | 2016-10-03T04:39:13Z | [
"python",
"scikit-learn",
"cross-validation",
"sklearn-pandas"
] |
introducing synchronous chained execution in celery workflow | 39,824,624 | <p>Suppose there are 4 tasks <code>T1</code>, <code>T2</code>, <code>T3</code>, <code>T4</code>. They are chained together as <code>T1.si() | T2.si() | T3.si() | T4.si()</code>. <code>T3</code> spawns further tasks <code>T30 .. T3n</code> asynchronously like <code>chord(T30,...,T3n)(reduce.s())</code>. I don't know <co... | 1 | 2016-10-03T04:29:57Z | 39,832,625 | <p>I will improve @jenner-felton's comment a bit...</p>
<p>You may call it like this:</p>
<pre><code>chain(T1.s(), T2.s(), T3.s(T4.s()))
</code></pre>
<p>e.g. <code>T4.s()</code> passed as one of parameters to the T3 task.</p>
<p>And T3 will run a <code>chord</code> itself with T4 passed as a callback.</p>
| 0 | 2016-10-03T13:17:29Z | [
"python",
"asynchronous",
"celery"
] |
solving multiple equations with many variables and inequality constraints | 39,824,681 | <p>I am trying to solve a problem with many variables using scipy and linear programming. I have a set of variables X which are real numbers between 0.5 and 3 and I have to solve the following equations :</p>
<pre><code>346 <= x0*C0 + x1*C1 + x2*C2 +......xN*CN <= 468
25 <= x0*p0 + x1*p1 + x2*p2 +......xN*pN ... | 1 | 2016-10-03T04:38:10Z | 39,825,221 | <p>This system of inequalities is not feasible: there is no solution that satisfies all constraints. You can see that from <code>res</code>:</p>
<pre><code> fun: 0.42500000000000243
message: 'Optimization failed. Unable to find a feasible starting point.'
nit: 28
status: 2
success: False
x: nan
</c... | 3 | 2016-10-03T05:45:44Z | [
"python",
"scipy",
"linear-algebra",
"linear-programming"
] |
Filter list's elements by type of each element | 39,824,683 | <p>I have list with different types of data (string, int, etc.). I need to create a new list with, for example, only int elements, and another list with only string elements. How to do it?</p>
| -1 | 2016-10-03T04:38:15Z | 39,824,724 | <p>You can accomplish this with <a href="https://docs.python.org/3.5/tutorial/datastructures.html#list-comprehensions" rel="nofollow">list comprehension</a>:</p>
<pre><code>integers = [elm for elm in data if isinstance(elm, int)]
</code></pre>
<p>Where <code>data</code> is the data. What the above does is create a n... | 1 | 2016-10-03T04:44:29Z | [
"python"
] |
Filter list's elements by type of each element | 39,824,683 | <p>I have list with different types of data (string, int, etc.). I need to create a new list with, for example, only int elements, and another list with only string elements. How to do it?</p>
| -1 | 2016-10-03T04:38:15Z | 39,825,022 | <p>Sort the list by type, and then use <code>groupby</code> to group it:</p>
<pre><code>>>> import itertools
>>> l = ['a', 1, 2, 'b', 'e', 9.2, 'l']
>>> l.sort(key=lambda x: str(type(x)))
>>> lists = [list(v) for k,v in itertools.groupby(l, lambda x: str(type(x)))]
>>> list... | 2 | 2016-10-03T05:22:25Z | [
"python"
] |
python: could not broadcast input array from shape (3,1) into shape (3,) | 39,824,700 | <pre><code>import numpy as np
def qrhouse(A):
(m,n) = A.shape
R = A
V = np.zeros((m,n))
for k in range(0,min(m-1,n)):
x = R[k:m,k]
x.shape = (m-k,1)
v = x + np.sin(x[0])*np.linalg.norm(x.T)*np.eye(m-k,1)
V[k:m,k] = v
R[k:m,k:n] = R[k:m,k:n]-(2*v)*(np.transpose(v)*... | -2 | 2016-10-03T04:40:27Z | 39,825,046 | <p><code>V[k:m,k] = v</code>; <code>v</code> has shape (3,1), but the target is (3,). <code>k:m</code> is a 3 term slice; <code>k</code> is a scalar.</p>
<p>Try using <code>v.ravel()</code>. Or <code>V[k:m,[k]]</code>. </p>
<p>But also understand why <code>v</code> has its shape.</p>
| 0 | 2016-10-03T05:25:01Z | [
"python",
"numpy"
] |
How to add a new column (Python list) to a Postgresql table? | 39,824,748 | <p>I have a Python list <code>newcol</code> that I want to add to an existing Postgresql table. I have used the following code:</p>
<pre><code>conn = psycopg2.connect(host='***', database='***', user='***', password='***')
cur = conn.cursor()
cur.execute('ALTER TABLE %s ADD COLUMN %s text' % ('mytable', 'newcol'))
con... | 0 | 2016-10-03T04:47:24Z | 39,825,439 | <p><code>ALTER TABLE</code> only changes table schema -- in your case it will create the new column and initialize it with empty (NULL) values.</p>
<p>To add list of values to this column you can do:
<code>UPDATE TABLE <table> SET ...</code> in a loop.</p>
| 0 | 2016-10-03T06:11:04Z | [
"python",
"postgresql"
] |
Outer merge on large pandas DataFrames causes MemoryError---how to do "big data" merges with pandas? | 39,824,952 | <p>I have two pandas DataFrames <code>df1</code> and <code>df2</code> with a fairly standard format:</p>
<pre><code> one two three feature
A 1 2 3 feature1
B 4 5 6 feature2
C 7 8 9 feature3
D 10 11 12 feature4
E 13 14 15 feature5
F 16 17 1... | 0 | 2016-10-03T05:16:27Z | 39,825,139 | <p>Try specifying a data type for the numeric columns to reduce the size of the existing data frames, such as: </p>
<pre><code>df[['one','two', 'three']] = df[['one','two', 'three']].astype(np.int32)
</code></pre>
<p>This should reduce the memory significantly and will hopefully let you preform the merge. </p>
| 1 | 2016-10-03T05:36:28Z | [
"python",
"pandas",
"memory",
"dataframe",
"out-of-memory"
] |
Outer merge on large pandas DataFrames causes MemoryError---how to do "big data" merges with pandas? | 39,824,952 | <p>I have two pandas DataFrames <code>df1</code> and <code>df2</code> with a fairly standard format:</p>
<pre><code> one two three feature
A 1 2 3 feature1
B 4 5 6 feature2
C 7 8 9 feature3
D 10 11 12 feature4
E 13 14 15 feature5
F 16 17 1... | 0 | 2016-10-03T05:16:27Z | 39,825,304 | <p>You can try first filter <code>df1</code> by <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.unique.html" rel="nofollow"><code>unique</code></a> values, <code>merge</code> and last <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.concat.html" rel="nofollow"><code>con... | 1 | 2016-10-03T05:55:28Z | [
"python",
"pandas",
"memory",
"dataframe",
"out-of-memory"
] |
Vocabulary Processor function | 39,825,043 | <p>I am researching about embedding input for Convolution Neural Network and I understand Word2vec. However, in <a href="https://github.com/dennybritz/cnn-text-classification-tf/blob/master/train.py" rel="nofollow">CNN text classification</a>. dennybritz used function <code>learn.preprocessing.VocabularyProcessor</code... | 0 | 2016-10-03T05:24:53Z | 39,826,331 | <p>Lets say that you have just two documents <code>I like pizza</code> and <code>I like Pasta</code>. Your whole vocabulary consists of these words <code>(I, like, pizza, pasta)</code> For every word in the vocabulary, there is an index associated like so (1, 2, 3, 4). Now given a document like <code>I like pasta</code... | 2 | 2016-10-03T07:20:43Z | [
"python",
"tensorflow",
"text-classification"
] |
Strange behaviour while reading data from Cassandra Columnfamily | 39,825,307 | <p>I am trying to do the following query on column-family using cqlsh (<code>cqlsh 5.0.1 | Cassandra 2.1.12 | CQL spec 3.2.1 | Native protocol v3</code>)</p>
<p><strong>Query :</strong></p>
<pre><code>select * from CassandraColumnFamily limit 10
</code></pre>
<p>But it gives the following error</p>
<p><strong>error... | 1 | 2016-10-03T05:55:32Z | 39,841,723 | <p>I am not sure how large are the rows that you are trying to fetch, and how many there are. But when you are doing select in CQL without any condition on primary key, you are doing a range scan which is costly. Remember, this is not MySQL. Cassandra works at its best when you are doing lookups on specific row keys. <... | 0 | 2016-10-03T22:59:52Z | [
"python",
"cassandra",
"datastax",
"cassandra-2.0"
] |
How to plot distribution with given mean and SD on a histogram in Python | 39,825,328 | <p>I have a following Pandas dataframe named Scores,following is the subset of it</p>
<pre><code> 0
0 25.104179
1 60.908747
2 23.222238
3 51.553491
4 22.629690
5 53.338099
6 22.360882
7 26.515078
8 52.737316
9 40.235152
</code></pre>
<p>When I plot a histogram it looks like following</p>
<p><a href="h... | 0 | 2016-10-03T05:57:46Z | 39,825,502 | <p>You can do something like this, </p>
<pre><code>plt.hist( The histogram data)
plt.plot( The distribution data )
plt.show()
</code></pre>
<p>The <code>plt.show</code> will show both figures embedded in a single figure.</p>
| 1 | 2016-10-03T06:16:38Z | [
"python",
"matplotlib",
"histogram"
] |
Sqlalchemy User Product Reviews Relation model deisgn | 39,825,375 | <p>Need models so that a User can have a Products and Users can leave Reviews on Products made by other users. I was thinking having a one to many relationship from products to reviews but then how do which users left which review. This is what i have so far. </p>
<pre><code>class User(db.Model, UserMixin):
id = d... | 0 | 2016-10-03T06:03:22Z | 39,826,122 | <p>I'm imagining setting it up like this (with the new one-to-many included as well - I think I've got that right). You should know the product's ID at the time you're creating the entry in the Python code, so you can simply add it in. I don't think you would necessarily need to create a relationship for that.</p>
<... | 0 | 2016-10-03T07:05:29Z | [
"python",
"sql",
"flask",
"sqlalchemy",
"flask-sqlalchemy"
] |
Sqlalchemy User Product Reviews Relation model deisgn | 39,825,375 | <p>Need models so that a User can have a Products and Users can leave Reviews on Products made by other users. I was thinking having a one to many relationship from products to reviews but then how do which users left which review. This is what i have so far. </p>
<pre><code>class User(db.Model, UserMixin):
id = d... | 0 | 2016-10-03T06:03:22Z | 39,891,847 | <p>You just need to add foreign keys for <code>User</code> and <code>Product</code> into your <code>Review</code> table:</p>
<pre><code>class Review(db.Model):
# ...
product_id = db.Column(db.Integer, db.ForeignKey('product.id'))
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
</code></pre>
<p>... | 1 | 2016-10-06T09:02:08Z | [
"python",
"sql",
"flask",
"sqlalchemy",
"flask-sqlalchemy"
] |
How to get all the tweets from the specific trend in twitter from tweepy | 39,825,413 | <p>I have a requirement to get all the tweets from the specific trend in twitter.</p>
<pre><code>Ex: api.get_all_tweets(trend="ABCD")
</code></pre>
<p>How can I achieve this with tweepy?</p>
| -2 | 2016-10-03T06:07:13Z | 39,842,482 | <p>There is no way to be guaranteed to capture all tweets. Twitter reserves the right to send you whatever they feel like. For something that is tweeted about infrequently like #upsidedownwalrus you'd probably get all of them, but for something that is a trending topic, you will only ever receive a sample.</p>
| 1 | 2016-10-04T00:31:55Z | [
"python",
"twitter",
"tweepy",
"python-twitter"
] |
How to get all the tweets from the specific trend in twitter from tweepy | 39,825,413 | <p>I have a requirement to get all the tweets from the specific trend in twitter.</p>
<pre><code>Ex: api.get_all_tweets(trend="ABCD")
</code></pre>
<p>How can I achieve this with tweepy?</p>
| -2 | 2016-10-03T06:07:13Z | 39,843,708 | <p>The <a href="https://dev.twitter.com/rest/public/rate-limits" rel="nofollow">Twitter API has limits</a> on what you can retrieve. If you require a census of posted Tweets, you'll need to pay for a service that provides such, but they are few and far between as they need to actively respect deletions.</p>
| 0 | 2016-10-04T03:30:54Z | [
"python",
"twitter",
"tweepy",
"python-twitter"
] |
Passing parameters from one SConstruct to another SConstruct using scons | 39,825,526 | <p>I have a C project built using SCons that links with a C library also built by Scons. Both the library and the project have there own SConstruct files. I read in <a href="http://stackoverflow.com/a/23898880/6198533">this topic</a> that you can call a SConstruct from another SConstruct in the same way as you would ca... | 0 | 2016-10-03T06:19:00Z | 39,830,811 | <p>My guess is that you're searching for the "<code>-u</code>" or the "<code>-U</code>" option. Please consult the <a href="http://scons.org/doc/production/HTML/scons-man.html" rel="nofollow">MAN page</a> and have a pick for your needs.</p>
| 0 | 2016-10-03T11:44:09Z | [
"python",
"scons"
] |
Pandas reorder data | 39,825,550 | <p>This is probably an easy one using pivot, but since I am not adding the numbers (every row is unique) how should I go about doing this?</p>
<p>Input:</p>
<pre><code> Col1 Col2 Col3
0 123.0 33.0 ABC
1 345.0 39.0 ABC
2 567.0 100.0 ABC
3 123.0 82.0 PQR
4 345.0 10.0 PQR
5 789.0 ... | 1 | 2016-10-03T06:21:12Z | 39,825,566 | <p>You can use <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.pivot.html" rel="nofollow"><code>pivot</code></a>:</p>
<pre><code>print (df.pivot(index='Col1', columns='Col3', values='Col2'))
Col3 ABC PQR XYZ
Col1
123.0 33.0 82.0 NaN
345.0 39.0 10.0 9... | 1 | 2016-10-03T06:23:00Z | [
"python",
"pandas",
"dataframe"
] |
scrapy - spider module def functions not getting invoked | 39,825,740 | <p>My intention is to invoke start_requests method to login to the website. After login, scrape the website. Based on the log message, I see that
1. But, I see that start_request is not invoked.
2. call_back function of the parse is also not invoking. </p>
<p>Whats actually happening is spider is only loading the url... | 0 | 2016-10-03T06:36:13Z | 39,828,899 | <p>Scrapy already has form request manager called <code>FormRequest</code>.</p>
<p>In most of the cases it will find the correct form by itself. You can try:</p>
<pre><code>>>> scrapy shell "https://www.zauba.com/import-gold/p-1-hs-code.html"
from scrapy import FormRequest
login_data={'name':'mylogin', 'pass... | -1 | 2016-10-03T09:56:15Z | [
"python",
"authentication",
"web-scraping",
"scrapy",
"scrapy-spider"
] |
scrapy - spider module def functions not getting invoked | 39,825,740 | <p>My intention is to invoke start_requests method to login to the website. After login, scrape the website. Based on the log message, I see that
1. But, I see that start_request is not invoked.
2. call_back function of the parse is also not invoking. </p>
<p>Whats actually happening is spider is only loading the url... | 0 | 2016-10-03T06:36:13Z | 39,841,383 | <p>I figured out the crapy mistake i did!!!! </p>
<p><strong>I didn't place the functions inside the class. Thats why .... things didnt work as expected. Now, I added a tab space to all the fuctions and things started to work fine</strong></p>
<p>Thanks @user2989777 and @Granitosaurus for coming forward to deb... | 0 | 2016-10-03T22:28:10Z | [
"python",
"authentication",
"web-scraping",
"scrapy",
"scrapy-spider"
] |
How to send FCM notification at specific time? | 39,825,989 | <p>I can be able to send FCM notifications to single or multiple devices through <a href="https://github.com/olucurious/PyFCM/tree/master/pyfcm" rel="nofollow">PyFCM</a> instantly.</p>
<pre><code># Send to single device.
from pyfcm import FCMNotification
push_service = FCMNotification(api_key="<api-key>")
# OR... | 0 | 2016-10-03T06:55:49Z | 39,826,064 | <p>If you're looking for a public API of FCM for a scheduled push or a payload parameter where you can set the push date, unfortunately, there's nothing like it as of the moment. </p>
<p>You must implement your own App Server and implement the scheduled push yourself (also mentioned it <a href="http://stackoverflow.co... | 0 | 2016-10-03T07:01:30Z | [
"python",
"firebase-cloud-messaging",
"pyfcm"
] |
Filtering through numpy arrays by one row's information | 39,825,997 | <p>I am asking for help on filtering through numpy arrays. I currently have a numpy array which contains the following information:</p>
<pre><code>[[x1_1, x1_2, ..., x1_n], [x2_1, x2_2, ..., x2_n], [y1, y2, ..., yn]
</code></pre>
<p>ie. the array is essentially a dataset where <em>x1, x2</em> are features (coordinate... | 2 | 2016-10-03T06:56:47Z | 39,826,070 | <p>You can use:</p>
<pre><code>import numpy as np
d = np.array([[0.1, 0.2, 0.3], [-0.1,-0.2,-0.3], [1,1,-1]])
print (d)
[[ 0.1 0.2 0.3]
[-0.1 -0.2 -0.3]
[ 1. 1. -1. ]]
#select last row by d[-1]
print (d[-1]>0)
[ True True False]
print (d[:,d[-1]>0])
[[ 0.1 0.2]
[-0.1 -0.2]
[ 1. 1. ]]
</code></pr... | 3 | 2016-10-03T07:01:59Z | [
"python",
"arrays",
"numpy",
"filter"
] |
what is means reconstruct object or recreate object in python? | 39,826,016 | <p>I am trying to understand difference between <code>__str__</code> and <code>__repr__</code> and following <a href="http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python/2626364#2626364">Difference between __str__ and __repr__ in Python</a> </p>
<p>In the answer it says <code>__repr__<... | 2 | 2016-10-03T06:58:17Z | 39,826,109 | <p>Perhaps a simple example will help clarify:</p>
<pre><code>class Object:
def __init__(self, a, b):
self.a = a
self.b = b
def __repr__(self):
return 'Object({0.a!r}, {0.b!r})'.format(self)
</code></pre>
<p>This object has two parameters defined in <code>__init__</code> and a sensib... | 2 | 2016-10-03T07:04:28Z | [
"python",
"python-3.x"
] |
How to move file from one folder to another folder same ftp using python | 39,826,120 | <p>How move files from one folder to another folder in same ftp using python
i used this code but it doesn't work out </p>
<pre><code>ftp=FTP("host")
ftp.login("user name","password")
def downloadFiles(path,destination):
try:
ftp.cwd(path)
#clone path to destination
ftp.dir(destination)
... | -2 | 2016-10-03T07:05:14Z | 39,826,207 | <p>I would suggest using the excellent python file system abstraction <a href="https://pypi.python.org/pypi/fs" rel="nofollow">pyfs</a> as you can see from the <a href="http://docs.pyfilesystem.org/en/latest/interface.html" rel="nofollow">documents</a> all of the file systems, once mounted, have <code>copy</code>, <cod... | 0 | 2016-10-03T07:13:12Z | [
"python",
"ftp"
] |
SWIG tutorial problems | 39,826,248 | <p>I'm trying to follow the swig tutorial but I've got stuck, right now I'm using:</p>
<ul>
<li>Python 3.5.1 (v3.5.1:37a07cee5969, Dec 6 2015, 01:54:25) [MSC v.1900 64 bit (AMD64)] on win32</li>
<li>Vs2015 x64, Microsoft (R) C/C++ Optimizing Compiler Version 19.00.23918 for x64</li>
<li>SWIG Version 3.0.10</li>
</ul>... | 1 | 2016-10-03T07:15:51Z | 39,827,046 | <p>The name of the dynamic-linked module for SWIG should begin with an underscore, in this case <code>_example.pyd</code>. The SWIG generated Python file is looking for the module named <code>_example</code>, see beginning of that file:</p>
<pre><code>from sys import version_info
if version_info >= (2, 6, 0):
d... | 1 | 2016-10-03T08:07:12Z | [
"python",
"c++",
"windows",
"visual-studio-2015",
"swig"
] |
conda stuck on Proceed ([y]/n)? when updating packages etc | 39,826,250 | <p>I just downloaded Anaconda 4.2.0 (with python 3.5.2) for Mac OS X. Whenever I try to update any packages etc, my ipython console presents the package dependencies and displays "Proceed ([y]/n)?" but does not take any inputs. E.g. I press enter, or y-enter etc. and nothing happens. Here's an example:</p>
<pre><code>... | 0 | 2016-10-03T07:16:03Z | 39,841,757 | <p>You can launch shell commands with the <code>!</code> operator in ipython, but you can't interact with them after the process has launched.</p>
<p>Therefore, you could:</p>
<ol>
<li>execute your conda command outside of your ipython session (IOW, a normal shell); or</li>
<li>pass the <code>--yes</code> flag. e.g.:... | 0 | 2016-10-03T23:05:59Z | [
"python",
"ipython",
"anaconda",
"spyder",
"graphlab"
] |
conda stuck on Proceed ([y]/n)? when updating packages etc | 39,826,250 | <p>I just downloaded Anaconda 4.2.0 (with python 3.5.2) for Mac OS X. Whenever I try to update any packages etc, my ipython console presents the package dependencies and displays "Proceed ([y]/n)?" but does not take any inputs. E.g. I press enter, or y-enter etc. and nothing happens. Here's an example:</p>
<pre><code>... | 0 | 2016-10-03T07:16:03Z | 40,022,547 | <p>If you add a '--yes' at the end of the command it works. For example:</p>
<pre><code>>>>!conda install seaborn --yes
</code></pre>
| 0 | 2016-10-13T13:35:27Z | [
"python",
"ipython",
"anaconda",
"spyder",
"graphlab"
] |
Model in Django 1.9. TypeError: __init__() got multiple values for argument 'verbose_name' | 39,826,485 | <p>I have Python 3.5 and Django 1.9
try to do the next</p>
<pre><code>class Question(models.Model):
def __init__(self, *args, question_text=None, pub_date=None, **kwargs):
self.question_text = question_text
self.pub_date = pub_date
question_text = models.CharField(max_length=200, verbose_name="Question")
pub_d... | 0 | 2016-10-03T07:31:42Z | 39,826,574 | <p>You don't need to override <code>__init__</code> in Django. Django is doing everything for you, you just need to define your models and you are fine.</p>
<p>But the error you are getting because <code>pub_date = models.DateTimeField('date_published', verbose_name="Date")</code> here you are setting <code>verbose_na... | 3 | 2016-10-03T07:37:40Z | [
"python",
"django"
] |
Model in Django 1.9. TypeError: __init__() got multiple values for argument 'verbose_name' | 39,826,485 | <p>I have Python 3.5 and Django 1.9
try to do the next</p>
<pre><code>class Question(models.Model):
def __init__(self, *args, question_text=None, pub_date=None, **kwargs):
self.question_text = question_text
self.pub_date = pub_date
question_text = models.CharField(max_length=200, verbose_name="Question")
pub_d... | 0 | 2016-10-03T07:31:42Z | 39,826,634 | <p>I believe you should not override <code>__init__()</code> here (as @vishes_shell supposed too). Instead of this, if you want to made some customization of instances initialization, you can add classmethod <code>create</code> to the model. Here is documentation: <a href="https://docs.djangoproject.com/en/1.10/ref/mod... | 0 | 2016-10-03T07:41:48Z | [
"python",
"django"
] |
Tensorflow: how it trains the model? | 39,826,514 | <p>Working on Tensorflow, the first step is build a data graph and use session to run it. While, during my practice, such as the <a href="https://www.tensorflow.org/versions/r0.9/tutorials/mnist/beginners/index.html#Training" rel="nofollow">MNIST tutorial</a>. It firstly defines <em>loss</em> function and the <em>optim... | 0 | 2016-10-03T07:33:12Z | 39,828,841 | <p>You do pass information about your structure to Tensorflow when you define your loss with:</p>
<pre><code>loss = tf.reduce_mean(cross_entropy, name='xentropy_mean')
</code></pre>
<p>Notice that with Tensorflow you build a graph of operations, and every operation you use in your code is a node in the graph.</p>
<p... | 0 | 2016-10-03T09:52:23Z | [
"python",
"tensorflow"
] |
Cross validation with particular dataset lists with Python | 39,826,538 | <p>I know sklearn has nice method to get cross validation scores:</p>
<pre><code> from sklearn.model_selection import cross_val_score
clf = svm.SVC(kernel='linear', C=1)
scores = cross_val_score(clf, iris.data, iris.target, cv=5)
scores
</code></pre>
<p>I'd like to know scores with specific training and test... | 2 | 2016-10-03T07:34:52Z | 39,826,758 | <p>This is exactly two lines of code:</p>
<pre><code>for tr, te in zip(train_list, test_list):
svm.SVC(kernel='linear', C=1).train(X[tr, :], y[tr]).score(X[te, :], y[te])
</code></pre>
<p>See <a href="http://scikit-learn.org/stable/modules/generated/sklearn.svm.SVC.html#sklearn.svm.SVC.score" rel="nofollow"><code... | 1 | 2016-10-03T07:49:21Z | [
"python",
"machine-learning",
"scikit-learn"
] |
Cross validation with particular dataset lists with Python | 39,826,538 | <p>I know sklearn has nice method to get cross validation scores:</p>
<pre><code> from sklearn.model_selection import cross_val_score
clf = svm.SVC(kernel='linear', C=1)
scores = cross_val_score(clf, iris.data, iris.target, cv=5)
scores
</code></pre>
<p>I'd like to know scores with specific training and test... | 2 | 2016-10-03T07:34:52Z | 39,826,951 | <p>My suggestion is to use <a href="http://scikit-learn.org/0.17/modules/generated/sklearn.cross_validation.KFold.html" rel="nofollow">kfold cross validation</a> like below. In this case, you will get both train, test indices for a particular split along with the accuracy score.</p>
<pre><code>from sklearn import svm
... | 1 | 2016-10-03T08:01:31Z | [
"python",
"machine-learning",
"scikit-learn"
] |
loop stuck on first page | 39,826,586 | <p>Been using beautiful soup to iterate through pages, but for whatever reason I can't get the loop to advance beyond the first page. it seems like it should be easy because it's a text string, but it seems to loop back, maybe it's my structure not my text string?</p>
<p>Here's what I have:</p>
<pre><code>import csv... | 0 | 2016-10-03T07:38:46Z | 39,827,063 | <p>You are changing the URL many times before you are opening it the first time, due to an indentation error. Try this:</p>
<p><code>for gr in groups:
url = "...some_url..."
page = urllib2.urlopen(url)
...everything else should be indented....</code></p>
| 0 | 2016-10-03T08:08:24Z | [
"python",
"python-2.7",
"scripting",
"beautifulsoup"
] |
loop stuck on first page | 39,826,586 | <p>Been using beautiful soup to iterate through pages, but for whatever reason I can't get the loop to advance beyond the first page. it seems like it should be easy because it's a text string, but it seems to loop back, maybe it's my structure not my text string?</p>
<p>Here's what I have:</p>
<pre><code>import csv... | 0 | 2016-10-03T07:38:46Z | 39,828,579 | <p>Your code indenting was mostly at fault. Also it would be wise to actually use the CSV library you imported, this will automatically wrap the player names in quotes to avoid any commas inside from ruining the csv structure.</p>
<p>This works by looking for the link to the next page and extracting the starting count... | 1 | 2016-10-03T09:37:16Z | [
"python",
"python-2.7",
"scripting",
"beautifulsoup"
] |
calculating delta time between records in dataframe | 39,826,720 | <p>I have an interesting problem, I am trying to calculate the delta time between records done at different locations.</p>
<pre><code>id x y time
1 x1 y1 10
1 x1 y1 12
1 x2 y2 14
2 x4 y4 8
2 x5 y5 12
</code></pre>
<p>I am trying to get some thing like</p>
<pre><code>id x y time delta
1 x1 y1 10 4
1 x2 y2 14 ... | 2 | 2016-10-03T07:47:05Z | 39,829,090 | <p>I think you need <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.drop_duplicates.html" rel="nofollow"><code>drop_duplicates</code></a> with <code>groupby</code> with <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.core.groupby.DataFrameGroupBy.diff.html" rel="nof... | 1 | 2016-10-03T10:06:06Z | [
"python",
"pandas",
"dataframe",
"spark-dataframe",
"pyspark-sql"
] |
calculating delta time between records in dataframe | 39,826,720 | <p>I have an interesting problem, I am trying to calculate the delta time between records done at different locations.</p>
<pre><code>id x y time
1 x1 y1 10
1 x1 y1 12
1 x2 y2 14
2 x4 y4 8
2 x5 y5 12
</code></pre>
<p>I am trying to get some thing like</p>
<pre><code>id x y time delta
1 x1 y1 10 4
1 x2 y2 14 ... | 2 | 2016-10-03T07:47:05Z | 39,829,093 | <p>@jezrael thank you for the hints, it was very useful, here is the code </p>
<pre><code>import pandas as pd
df = pd.read_csv("sampleInput.txt", header=None,usecols=[0,1,2,3], names=['id','x','y','time'],sep="\t")
delta = df.groupby(['id','x','y']).first().reset_index()
delta['delta'] = delta.groupby('id')['time'].di... | 0 | 2016-10-03T10:06:16Z | [
"python",
"pandas",
"dataframe",
"spark-dataframe",
"pyspark-sql"
] |
Using an existing python3 install with anaconda/miniconda | 39,826,735 | <p>With <code>python3</code> previously installed via <code>homebrew</code> on macOS, I just downloaded <code>miniconda</code> (via <code>homebrew cask</code>), which brought in another full python setup, I believe.</p>
<p>Is it possible to install anaconda/miniconda <strong>without</strong> reinstalling python?
And, ... | 0 | 2016-10-03T07:48:01Z | 39,827,107 | <p>Anaconda comes with python for you but do not remove the original python that comes with the system -- many of the operating system's libs depend on it.</p>
<p>Anaconda manages its python executable and packages in its own (conda) directory. It changes the system path so the python inside the conda directory is the... | 0 | 2016-10-03T08:11:19Z | [
"python",
"homebrew",
"anaconda",
"miniconda",
"homebrew-cask"
] |
Display image in Grayscale using vispy | 39,826,807 | <p>i'm working with a spatial light modulator (SLM) which is connected as a second monbitor. The SLM has tzo recive 8-bit grayscale images.
I am currently working with vispy to display the images on the SLM, but i'm not shore if they are diplayed correctly.
Is there any possibility to display an image on grayscale usi... | 0 | 2016-10-03T07:52:27Z | 39,843,353 | <p>You can transform your picture from RGB to gray (see <a href="http://stackoverflow.com/questions/12201577/how-can-i-convert-an-rgb-image-into-grayscale-in-python" title="rgba2gray">this post</a>) and then use the 'grays' colormap.</p>
<pre><code>import sys
from vispy import scene
from vispy import app
import numpy ... | 0 | 2016-10-04T02:40:42Z | [
"python",
"vispy"
] |
How to average and compress data using django? | 39,826,859 | <p>This class has volts & frequency that are calculated every minute.
I want to take the average of each (volts, frequency ... etc) every 15 minutesof the recorded data and time ].</p>
<p>Should I do it in SQL or it can be done by django?</p>
<pre><code>class LogsN (models.Model):
syv = models.ForeignKey (smo... | 0 | 2016-10-03T07:55:48Z | 39,826,966 | <p>I think you are looking for this
<a href="https://docs.djangoproject.com/en/1.10/topics/db/aggregation/" rel="nofollow">https://docs.djangoproject.com/en/1.10/topics/db/aggregation/</a></p>
<pre><code>LogsN.objects.all().aggregate(Avg('val'))
</code></pre>
| 0 | 2016-10-03T08:02:40Z | [
"python",
"sql",
"django",
"aggregation"
] |
How to average and compress data using django? | 39,826,859 | <p>This class has volts & frequency that are calculated every minute.
I want to take the average of each (volts, frequency ... etc) every 15 minutesof the recorded data and time ].</p>
<p>Should I do it in SQL or it can be done by django?</p>
<pre><code>class LogsN (models.Model):
syv = models.ForeignKey (smo... | 0 | 2016-10-03T07:55:48Z | 39,835,296 | <p>As posted by Sardorbek (I cannot comment yet): according to <a href="https://docs.djangoproject.com/en/1.10/topics/db/aggregation/" rel="nofollow">https://docs.djangoproject.com/en/1.10/topics/db/aggregation/</a> :</p>
<pre><code>LogsN.objects.all().aggregate(Avg('val'))['val__avg']
</code></pre>
<p>Just remember ... | 0 | 2016-10-03T15:35:16Z | [
"python",
"sql",
"django",
"aggregation"
] |
Use list of integer type in a loop in python | 39,826,961 | <p>I have the following code:</p>
<pre><code>a=[]
b=[]
for s in range(10):
dw = s%5
if dw == 1:
WD = random.randint(60,100)
DD =[int(round(dc*WD,0)) for dc in [.2,.2,.2,.2,.2]]
for k in range(5):
a.append(DD[k])
print a
TCV = DD[dw]
DDPT = [int(roun... | -8 | 2016-10-03T08:02:07Z | 39,827,020 | <p><code>DDPT</code> is an array of integers, as evidenced in this line:</p>
<p><code>DDPT = [int(round(pt*TCV)) for pt in [.3,.5,.2]]</code></p>
<p><code>DDPT[PT]</code> is some integer, and you are trying to iterate through that. Hence the error.</p>
<p>I would recommend giving your variables more descriptive name... | 4 | 2016-10-03T08:05:19Z | [
"python"
] |
How can I get Spark to see code in a different module? | 39,827,165 | <p>I have complicated function that I run over a dataset in spark using the map function. It is in a different python module. When map is called, the executor nodes do not have that code and then the map function fails.</p>
<pre><code>s_cobDates = getCobDates() #returns a list of dates
sb_dataset = sc.broadcast(datase... | 1 | 2016-10-03T08:15:44Z | 39,836,437 | <p>It is possible to dynamically distribute Python modules using <code>SparkContext.addPyFile</code></p>
<pre><code>modules_to_distribute = ["foo.py", "bar.py"]
for module in modules_to_distribute:
sc.addPyFile(module)
</code></pre>
<p>All files distributed this way are placed on the Python path and accessible t... | 0 | 2016-10-03T16:42:44Z | [
"python",
"apache-spark",
"pyspark"
] |
How can I get Spark to see code in a different module? | 39,827,165 | <p>I have complicated function that I run over a dataset in spark using the map function. It is in a different python module. When map is called, the executor nodes do not have that code and then the map function fails.</p>
<pre><code>s_cobDates = getCobDates() #returns a list of dates
sb_dataset = sc.broadcast(datase... | 1 | 2016-10-03T08:15:44Z | 39,878,043 | <p>Well the above answer works, it falls down if your modules are part of a package. Instead, its possible to zip your modules and then add the zip file to your spark context and then they have the correct package name.</p>
<pre><code>def ziplib():
libpath = os.path.dirname(__file__) # this should point to your p... | 0 | 2016-10-05T15:25:16Z | [
"python",
"apache-spark",
"pyspark"
] |
way to update multiple different sub documents with different values within single document in mongodb using python | 39,827,194 | <p>I am working in Python with pandas dataframes and currently my dataframe is :</p>
<pre><code>product_id mock_test_id q_id q_correct_option language_id is_corr is_p is_m
2790 2999 1 1 1 1 1 1
2790 2999 2 1 ... | 0 | 2016-10-03T08:17:07Z | 39,828,415 | <p>Using one query you can set the same value to multiple objects of an array but to set different value to different objects you have to hit multiple queries.</p>
<p>In the case if you want to update multiple objects with same value then in that case use <strong>{multi: true}</strong> option.</p>
<pre><code> db.... | 1 | 2016-10-03T09:28:57Z | [
"python",
"mongodb",
"pandas",
"dataframe"
] |
Multiple images in a ttk label widget | 39,827,233 | <p>With ttk labels, it is possible to specify multiple images which are displayed according to the label's state. But I can't make it work. Here is the code.</p>
<pre><code>from tkinter import *
from tkinter.ttk import *
BITMAP0 = """
#define zero_width 24
#define zero_height 32
static char zero_bits[] = {
0x00,0x00,... | 1 | 2016-10-03T08:19:56Z | 39,829,722 | <p>I find the docs a bit confusing but it looks like you want <code>'hover'</code> instead of <code>'active'</code>.</p>
<p>I am not aware of any source explaining which state flags are automatically set in which wigdets in which conditions. What I did here was to place the mouse cursor over the label and then query t... | 1 | 2016-10-03T10:43:06Z | [
"python",
"tkinter",
"label",
"ttk"
] |
I can not import caffe in pycharm but i can import in terminal. Why? | 39,827,242 | <p>I want to import caffe. I can import it in terminal but not in pycharm.</p>
<p>I have tried some suggestions like adding <code>include /usr/local/cuda-7.0/lib64</code> to <code>/user/etc/ld.so.conf</code> file but still it can not import this module. However, I think this is not a good solution as I am using the CP... | 0 | 2016-10-03T08:20:24Z | 39,892,292 | <p>I installed caffe using pycharm terminal too but it did not work. Finally I added <code>sys.path.extend([/home/user/caffe-master/python])</code> to python consule and meanwhile I wrote the following in my code.</p>
<pre><code> import sys
sys.path.append("/home/user/caffe-master/python/")
import caffe
</code></pre... | 0 | 2016-10-06T09:25:29Z | [
"python",
"pycharm",
"caffe"
] |
Problems extending pandas Panels dynamically, DataFrame by DataFrame | 39,827,247 | <p>I want to construct a pandas panel dynamically, using the following - simplified - code:</p>
<pre><code>import pandas as pd
rows=range(0,3)
pl=pd.Panel()
for i in range(0,3):
pl[i]=pd.DataFrame()
for j in rows:
pl[i].set_value(j,'test_value','test')
</code></pre>
<p>Which seems to work fine. But w... | 0 | 2016-10-03T08:20:46Z | 39,827,374 | <p>Use two for loops to solve this problem:</p>
<pre><code>import pandas as pd
rows=range(0,3)
pl=pd.Panel()
#first for loop to create dataframe
for i in range(0,3):
pl[i]=pd.DataFrame()
#Second for loop to assign values
for i in range(0,3):
for j in rows:
pl[i].set_value(j,'test_value','test')... | 1 | 2016-10-03T08:29:34Z | [
"python",
"pandas"
] |
Pandas dataframe: how to plot candlesticks | 39,827,273 | <p>I have following data in dataframe to plot candlesticks. </p>
<pre><code> open high close low
date
2013-10-08 3.21 3.28 3.27 3.20
2013-10-09 3.25 3.28 3.26 3.22
2013-10-10 3.26 3.27 3.23 3.21
2013-10-11 3.25 3.28 3.27 3.23
2013-10-14 3.28 3.35 ... | 0 | 2016-10-03T08:22:44Z | 39,827,331 | <p>If the index is not a <code>datetime</code> (use <code>df.index.dtype</code> to find out which type it is), you can change the type to a datetime by using:</p>
<pre><code>df.index = pd.to_datetime(df.index)
</code></pre>
<p>(assuming your dataframe is called <code>df</code>)</p>
| 0 | 2016-10-03T08:26:40Z | [
"python",
"pandas",
"matplotlib",
"dataframe"
] |
Read JSON Multiple Values into Bash Variable - not able to use any 3rd party tools like jq etc | 39,827,359 | <p>This has been asked a million times and I know there are a million solns. However im restricted in that I cant install anything on this client server , so I have whatever bash can come up with :)</p>
<p>I'm referencing <a href="http://stackoverflow.com/questions/1955505/parsing-json-with-unix-tools">Parsing JSON wi... | 1 | 2016-10-03T08:28:41Z | 39,827,466 | <p>It's simple using <code>Python</code>.</p>
<p><strong>Example</strong></p>
<pre><code>$ python -c 'import sys, json; print json.load(sys.stdin)["rows"][0]["Egroup"]' <demo.json
[u'ALPHA', u'BETA', u'GAMA', u'DELTA']
</code></pre>
| 0 | 2016-10-03T08:35:57Z | [
"python",
"json",
"bash",
"perl",
"shell"
] |
Read JSON Multiple Values into Bash Variable - not able to use any 3rd party tools like jq etc | 39,827,359 | <p>This has been asked a million times and I know there are a million solns. However im restricted in that I cant install anything on this client server , so I have whatever bash can come up with :)</p>
<p>I'm referencing <a href="http://stackoverflow.com/questions/1955505/parsing-json-with-unix-tools">Parsing JSON wi... | 1 | 2016-10-03T08:28:41Z | 39,829,199 | <p>Perl 1-liner using JSON module:</p>
<pre><code>perl -lane 'use JSON; my $data = decode_json($_); print join( ",", @{ $data->{rows}->[0]->{Egroup} } )' demo.json
</code></pre>
<p><strong>Output</strong></p>
<pre><code>ALPHA,BETA,GAMA,DELTA
</code></pre>
<p>If you do not have <a href="http://search.cpan.o... | 0 | 2016-10-03T10:12:29Z | [
"python",
"json",
"bash",
"perl",
"shell"
] |
How to add a form as field attribute in a django ModelForm | 39,827,397 | <p>I have a ModelForm for a Product object set up like this: </p>
<pre><code>class ProductForm(forms.ModelForm):
compositon_choices = ((2L, u'Calcium (100mg)'), (3L, u'Iron (500mg)'))
composition_selection = forms.\
MultipleChoiceField(widget=forms.CheckboxSelectMultiple,
... | 0 | 2016-10-03T08:30:57Z | 39,835,031 | <p>Finally I understand what I did wrong. To make subforms in Django one needs formsets.
In my case i needed two different types of formsets because I had two different relationships that I wanted to change from one form. </p>
<ul>
<li>one to many relationship</li>
<li>many to many relationship</li>
</ul>
<p>dependi... | 0 | 2016-10-03T15:20:43Z | [
"python",
"django",
"django-models",
"django-forms"
] |
Difference between the import(s) in python | 39,827,449 | <p>What is the difference between:</p>
<pre><code>from class_name import function_name
</code></pre>
<p>and:</p>
<pre><code>import class_name
</code></pre>
<p>Please specify if for the first one only the <code>function_name</code> is imported and for the second the full class.</p>
| -1 | 2016-10-03T08:34:29Z | 39,827,609 | <p>You can't import single methods from a class, only classes from modules or functions from modules. Please see <a href="http://stackoverflow.com/questions/8502287/how-to-import-only-the-class-methods-in-python">this</a> question and <a href="https://docs.python.org/3/tutorial/modules.html" rel="nofollow">this tutoria... | 0 | 2016-10-03T08:44:35Z | [
"python",
"python-import"
] |
Send terminal input data when restarting a program (python) | 39,827,526 | <p>My script asks for input from the terminal first thing:</p>
<pre><code>ans = raw_input("Do thing A (1) / Do thing B (2)")
</code></pre>
<p>Then runs the code and restarts itself when an exception arises.</p>
<pre><code>def restart_program():
python = sys.executable
os.execl(python, python, * sys.argv)
</... | 1 | 2016-10-03T08:39:50Z | 39,828,030 | <p>like others mentioned in comments, try to run your python script via shell script using while loop, smthng like (first run wo cmd line arguments):</p>
<pre><code>arg=''
while true
do
python restart.py $arg
arg='1'
sleep 1800
done
</code></pre>
<p>and in your python code check if argument was provided:... | 0 | 2016-10-03T09:09:27Z | [
"python",
"terminal",
"restart"
] |
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