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Python для начинающих
В практике любого программиста наступает задача скопировать некий материал с сайта. Так как страниц достаточно много не стоит терять время на ручное копирование. Ведь, языки программирования нужны для того чтобы избавится от рутинной работы и автоматизировать разные задачи. В Python есть отличная ... |
Currently I am trying to oversample with SMOTE and then run my XGBClassifier in the Pipeline. For some reason I cannot get HyperOpt to play nice with the Pipeline.
The two below examples both run properly:
smote = SMOTE(random_state = 42)
model = XGBClassifier(random_state = 42)
pipe = Pipeline([('smote', smote),
('mod... |
How to convert an epoch timestamp to a human readable date format?
In Python:
import time
time.strftime("%a, %d %b %Y %H:%M:%S %Z", time.localtime(epoch))
One example:
$ python
Python 2.7.5 (default, Nov 6 2016, 00:28:07)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2
Type "help", "copyright", "credits" or "licen... |
Generators in Go
Sven Haardiek, 2020-07-24
Lately I played a lot with Haskell and I started to love lazy evaluation as it let me define infinite sequences without the need of infinite memory.
But at work, I mostly write programs using Python and Go.
Python’s nearest thing to lazy evaluation are Iterators and especially... |
software engineer @ planet earth 🌍
The binary tree is a type of data structure that is commonly used to represent hierarchical data. It is an efficient way of storing and organizing data that is ranked in parent nodes and child nodes.
Essentially, the binary tree is a collection of data, called nodes, linked together ... |
How To Set Up an Apache, MySQL, and Python (LAMP) Server Without Frameworks on Ubuntu 14.04
Introduction
This article will walk you through setting up a server with Python 3, MySQL, and Apache2, sans the help of a framework. By the end of this tutorial, you will be fully capable of launching a barebones system into pro... |
In the book Real World Haskell, the author writes in the first line of every file that uses, for example the following: file: ch05/PrettyJSON. The chapter slash and the name of a module.
I wanted to create a script which reads the first line and copies the files to the appropriate directory. In the above example we sho... |
Jun 122019
With so many proxy website URLs all over the place, it's difficult to tell which one's actually have new proxies posted or if you're just receiving the same old proxies that are cluttering up your list and wasting time on testing. So, I wrote a spider that will scrape proxies off of URLs and compare the firs... |
We often want to use a for loop to search through a list for some value:
items_on_sale = ["blue_shirt", "striped_socks", "knit_dress", "red_headband", "dinosaur_onesie"]
# we want to check if the item with ID "knit_dress" is on sale:
for item in items_on_sale:
if item == "knit_dress":
print("Knit Dress is on sale... |
SOLVED Is it possible to export to from Space Center to a multi-page or tall-page PDF?
StephenNixonlast edited by gferreira
I'm getting a lot of value out of mojo.UI
SpaceCenterToPDF(), but finding a major limitation:
The PDFs I export cut off after a single page. So, I can't proof more than a very small sample of text... |
`pypy -OO` behaves differently compared to `python -OO`
Hello up there. I was preparing new release of pygolang and discoverd another PyPy bug: PyPy does not remove docstrings when invoked as pypy -OO and unfortunately this breaks zope.interfaces. Please find details below:
no -O is handled equally:
(pypy2.venv) test1@... |
Intro
Recent years have seen the broad adoption of web-based Open311 systems that connect the public with local government. Open311 is used by individuals in a city to report problems like potholes, speeding, and graffiti. This information is received by a computer application where work can be assigned to the proper d... |
Portlet metadata | HCL Digital Experience
Portlet nodes can own metadata, which are name-value pairs of data that is associated with the content node. Metadata are used by the portal, for example, to set display attributes, or by the user. The Portal bean allows read-only access on portlet metadata. Metadata can be ass... |
ExtUtils::MakeMaker - create an extension Makefile
use ExtUtils::MakeMaker;
WriteMakefile( ATTRIBUTE => VALUE [, ...] );
which is really
MM->new(\%att)->flush;
This utility is designed to write a Makefile for an extension module from a Makefile.PL. It is based on the Makefile.SH model provided by Andy Dougherty and the... |
Python style
pylint
To install pylint and retrieve TensorFlow's custom style definition:
$ pip install pylint
$ wget -O /tmp/pylintrc https://raw.githubusercontent.com/tensorflow/tensorflow/master/tensorflow/tools/ci_build/pylintrc
To check a file with pylint:
$ pylint --rcfile=/tmp/pylintrc myfile.py
Supported Pytho... |
There's something deeply beautiful about the fractal, branching processes in Lichtenberg figures. They're reminiscent of lightning, fern fronds, and river networks viewed from above, all things that show some degree of fractal geometry.
These tree-like patterns are caused by subjecting an insulating medium to high volt... |
一段尾盘平仓的代码，每天14:55定时平仓，代码如下面这样：
可是我看回测结果的时候，大部分是正常的，如下图所示，前后几天都是14：56平仓了，但是2010-12-22这天没有显示有平仓记录。
我根据self.f1的记录，发现确实发出了平仓命令。
我自己分析可能的原因只能是发出了平仓命令，但是没有平仓成功。
这就奇怪了。
我记得回测时没有什么另外的逻辑判断吧，只要用bar.close_price就一定能成交的，
请问一下陈总，这是什么原因引起的呢？谢谢。
#盘中未平仓，盘尾时间段平仓
if self.sellWindow:
if self.pos > 0:
self.sell(bar.... |
Is it intended behavior that hMailServer will not add the SpamAssassin score to its own score unless the SpamAssassin score is greater than or equal to the SpamAssassin spam threshold (i.e., SpamAssassin tags it as spam)? I've seen some discussions on this and it is eventually just dropped and the people usually just l... |
Empty graph using implicit_plot3d with contour-option
Hello everybody,
I wanted to make an isosurface plot from a 3d matrix, which contains random values from 0 to 1 at an equally spaced 3d grid.
Therefore I generated random numbers, and reshaped them in a 3d matrix. I interpolated the 3d matrix linearly with the Regul... |
携程笔试的时候碰到了这个题目，当时其实没多想。贝叶斯这个路子怕也太过气了吧... 携程也真是...
回顾思路
计算先验概率
计算条件概率
不同类别概率估计
原始数据集
代码
加载数据集
import numpy as np
def loadDataSet():
postingList=[['my', 'dog', 'has', 'flea', 'problems', 'help', 'please'],
['maybe', 'not', 'take', 'him', 'to', 'dog', 'park', 'stupid'],
['my', 'dalmat... |
こんにちは！
皆さんはMatplotlibで図タイトルを下に表示させたいと思ったことはありませんか？
この記事を読めば、簡単に図タイトルを下に表示させることができるようになりますよ。
今回の記事では、以下の方法について紹介していきます。
title()で図タイトルを下に表示させる方法
text()で図タイトルを下に表示させる方法
棒グラフを用いて説明するので、棒グラフの描き方も押さえておきましょう。
こんにちは！ 前回の記事では、簡単なグラフの描き方として、折れ線グラフ、曲線のグラフの描き方を紹介しました。 [sitecard subtitle=あわせて読みたい url=https://py-memo.com/python/[…]
... |
I browse the web using the ad blocker uBlock Origin. I use the default filter lists, plus all the annoyance filter lists, plus Web Annoyances Ultralist. Even with those, there’s a couple of annoyances that aren’t blocked. Things that probably don’t bug a majority of people, but they bug me. Things like…
New Reddit “Top... |
Invalid groups
bobbylast edited by gferreira
Hi,
Iâm very new to robofont so please forgive me if this question comes across silly.
Iâm exporting some fonts from fontlab to UFO and I keep getting the following warning upon opening in robofont. (screen grab attached)
The
'tags I can only see from the output window, ... |
rlabbe on master
Fix misleading comment Hi! … Merge pull request #219 from Ph… (compare)
rlabbe on master
Fix test by relaxing near_eq (f… Merge pull request #217 from pg… (compare)
rlabbe on master
docs: rts_smoother: Fix wrong r… Merge pull request #216 from nh… (compare)
rlabbe on master
Fix typo 'transistion' -> 't... |
I am working on this coding problem “Count the number of words & lines that have more than X vowels for every Y words in every Z line”
Basically the input string has multiple lines and I need to count words that has X or more vowels in them. But the constraint is I need to consider only alternate Zth line as well as al... |
If you don't know too much about the Swift Package Manager, but you are looking for the basics please read my tutorial about SPM that explains pretty much everything. The aim of this article is to go deep into the SPM architecture, also before you start reading this I'd recommend to also read my article about framework... |
Summary
Smooths sharp angles in lines to improve aesthetic or cartographic quality.
Illustration
Usage
There are two smoothing methods available:
The Polynomial Approximation with Exponential Kernel (PAEK) method (PAEK in Python) smooths lines based on a smoothing tolerance. Each smoothed line may have more vertices th... |
分析目标
下面分析的主要是少年三国志。
Lua脚本解密与DUMP
LuaJit IDA分析调用树：
AppDelegate::applicationDidFinishLaunching(AppDelegate *__hidden this) EXPORT _ZN11AppDelegate29applicationDidFinishLaunchingEv
cocos2d::CCLuaEngine::defaultEngine(cocos2d::CCLuaEngine *__hidden this) EXPORT _ZN7cocos2d11CCLuaEngine13defaultEngineEv
cocos2d::CCLuaEngine... |
I have no Microsoft partitions in my system nor dual boot (i run Windows in VirtualBox) yet not sure when this changed (update in November?) all my linux ext4 partitions show up as "Microsoft basic data" types (except BIOS boot and Swap) in fdisk -l (also in Gnome Disk utility gui, just shows "Basic data" instead of th... |
The JUCE codebase has a very strict and consistent coding style. The style evolved gradually over the years, incorporating generally acknowledged best-practice C++ advice, experience, and personal preference.
In response to requests for a set of rules that the codebase follows, this is an attempt to list some of the gu... |
我正在编写一个接受用户输入的程序。
#note: Python 2.7 users should use `raw_input`, the equivalent of 3.X's `input`
age = int(input("Please enter your age: "))
if age >= 18:
print("You are able to vote in the United States!")
else:
print("You are not able to vote in the United States.")
只要用户输入有意义的数据，该程序就会按预期运行。
C:\Python\Proje... |
When I try to open FC, it shows the loading screen and then crashes.
If I run it through the terminal I get the following:
Code: Select all
Program received signal SIGSEGV, Segmentation fault.
#0 /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7f3060b73f20]
#1 /lib/x86_64-linux-gnu/libc.so.6(+0x18ad6a) [0x7f3060cbfd6a]
... |
Let's learn Aardvark
Welcome to Aardvark, the language that has entranced programmers by its simplicity and amazingness for the last few days.
My goal is to by the end of this lesson have taught you the basics of the Aardvark language and get you on a course to become an amazing Aardvark developer.
In programming, you ... |
How To make a Bot in Discord.py That can do google search!!
A Bot in Discord.py That can do google search!!
Knowledge multiplies when shared!
So without any further ado let's get started!
Installing Packages:
First part in this tutorial is to install the necessary packages. In this case we will use Google API :
Here go... |
This post is also available as a Python notebook.
From September 2017 to October 2018, I worked on TensorFlow 2.0 alongside many engineers. In this post, I’ll explain what TensorFlow 2.0 is and how it differs from TensorFlow 1.x. Towards the end, I’ll briefly compare TensorFlow 2.0 to PyTorch 1.0. This post represents ... |
AdaBoost algorithm
Boosting is a supervised machine learning algorithm for primarily handling data which have outlier and variance. Recently, boosting algorithms gained enormous popularity in data science. Boosting algorithms combine multiple low accuracy models to create a high accuracy model. AdaBoost is example of B... |
Qualtricsで行った調査からデータをダウンロードしています。 Python 3サンプルコード（https://api.qualtrics.com/docs/response-exports）そして、それを中心に私のコードに基づいています。
ダウンロードが成功した後、ユーザーが選択できるオプションのリストを提供する質問が数字としてダウンロードされていることに気付きました（選択した回答のインデックスが疑われます）。
答えは、データを異なる方法でダウンロードするためにいくつかのパラメーターを入力するという単純なものであると信じていますが、QualtricのAPIドキュメントで見つけることができないようです。
これは、このプログラムを... |
题目来自：Python 练习册。
题目1.9： 通常，登陆某个网站或者 APP，需要使用用户名和密码。密码是如何加密后存储起来的呢？请使用 Python 对密码加密。
思路：salt 加 hash 来单向转换密码明文
参考代码
以下给出Py2和Py3两段代码，输出的内容是一样的。因为加密之后的内容不是unicode代码，所以存储可能不方便，可以使用base64.b64encode(hashed)转化为base64编码格式。
Python2代码
import os,base64
from hashlib import sha256
from hmac import HMAC
def encrypt_password(password,... |
Ruby 2.3.0 preview 1
21st September 2015
Ruby 2.3.0 preview 1 was announced and, as usual it includes plenty of improvements and new features.
Three new features are highlighted in the announcement email:
did_you_mean.gem
Safe navigation operator
Frozen String Literal Pragma
Did you mean
did_you_mean.gem is an aid to d... |
This API endpoint allows you to upload files and to process your images (eg. create image thumbnails).
Upload
Image and files have separate API endpoints (e.g. images can be resized, whereas files cannot). Once the upload is completed the URL of the file/image is returned and is ready for use.
The returned URL is serve... |
こんにちは！
皆さんは、Matplotlibで日本語を使おうとしたことはありますか？
残念ながら、デフォルトの状態では Matplotlibで日本語を使うことはできません。
以下の画像は、グラフタイトル、x軸ラベル、y軸ラベルで日本語を使おうとした際の画像です。
日本語を使おうとすると、日本語を指定した全ての部分で文字化けしてしまっていますね。
このままでは、日本語の資料などを作るときには使えませんね。
ですが、「japanize-matplotlib」モジュールというものを使えば、超簡単にMatplotlibで日本語を使えるようになります。
そこで今回は、Maplotlibの日本語化に関して、以下のことを紹介します。
japani... |
The following global variables are available globally.
The global Python interface.
You can import Python modules and access Python builtin types and functions via the
Pythonglobal variable.
import Python
// Import modules.
let os = Python.import("os")
let np = Python.import("numpy")
// Use builtin types and functions.... |
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import ... |
Proxy Servers for Noobs
Intro
After my recent post, Discord Reverse Proxy, there have been a lot of people, like @Baconman321 and @DynamicSquid and @Jeydin21 who have asked how proxies work, and what they do, so I decided to follow up that post with this one, a tutorial on how to make a proxy server and a breakdown of ... |
A veces nos resulta necesario hacer una comprobación visual y automática del estado de una página web.
Se puede hacer de muchas maneras. En este ejemplo, vamos a usar la consola de linux. En mi caso, un ubuntu sin entorno gráfico puesto.
Necesitamos instalar Selenium y el chrome driver. Juntos nos proporcionan una form... |
单链表反转
参考链接：单链表反转详解
链表节点定义如下(python)：
1
class ListNode: # 定义链表节点
def __init__(self, x):
self.val = x
self.next = None
原链表：1->2->3->4->5->NULL
反转后：5->4->3->2->1->NULL
新建链表法的主要思想是新建一个链表，保证其与原链表顺序相反，然后返回新链表，实现原链表的反转。新建反转链表有两种方法，一种是使用头插法新建链表，另一种是使用辅助栈(或者数组等)。这类方法的主要特点是需要使用额外的存储空间。
使用头插法新建一个链表(虽说是新链表，只是... |
In this post I will show you how easy it is to write a Python code that extracts hotel list from booking.com. The simplicity of this code is achieved with the help of Selenium Web Driver which acts as the main data extraction means here.
Let’s say we need to extract names of hotels in Berlin. What we need to do here is... |
Building an enterprise data warehouse can be either relatively straightforward or very sophisticated. It depends on many factors, such as the conceptual data model complexity and the variety of source systems. In many cases, applying the Change Data Capture (CDC) approach can make the data integration simpler. Fortunat... |
Jay Taylor's notes
back to listing index
Intro to Automatic Keyphrase Extraction
[web search]
bdewilde.github.io)
Intro to Automatic Keyphrase Extraction
2014-09-23
feature design frequency statistics keyphrase extraction graph-based ranking NLP task reformulation
I often apply natural language processing for purpose... |
Plot your first graph in Python
In a few simple steps you can build your fully-functional application, main focus is on:
Gain access to the Service User Space
Select data
Acquire data
Plot
To have the complete example just cut and paste in a single file the code shown in the next paragraphs.
This example has been desig... |
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Skype-бот для деплоя без Skype API
Вы, наверное, знакомы с использованием чат-ботов для управления чем-либо. Например, очень удобно запускать сборку или раскладку, просто написав сообщение одному из своих контактов в IM.
Для скайпа существуют различные готовые боты, один из представителей — Sevabot. Все они используют ... |
Python使用pass-by-value，但由于所有这些值都是对象引用，因此净效果类似于pass-by-reference。 但是，Python程序员更多地考虑对象类型是可变的还是不可变的 。 可变对象可以就地更改（例如，字典，列表，用户定义的对象），而不可变对象不能（例如，整数，字符串，元组）。
以下示例显示了一个传递两个参数的函数，一个不可变字符串和一个可变列表。
>>> def do_something(a, b):
... a = "Red"
... b.append("Blue")
...
>>> a = "Yellow"
>>> b = ["Black", "Burgundy"]
>>> do_som... |
Much media work requires changing characteristics of media files, such as bitrate or resolution. Finding a straightforward way to get started can be bewildering and intimidating. On this page, I provide an onramp into that world.
You'll notice in what follows that the word 'resolution' doesn't appear. What the two appl... |
I am trying to manually process UDP data that is being sent from a shake with obspy.
At first, I was not using UDP, and was polling the waveform directly, attaching an inventory file and removing the inventory file. This worked, but I do not want to request a pull each time, I want to passively accept the data via UDP.... |
12-24-2020
Due to an unexpected database update fail, the forum had to undergo a reset to an August backup. This sadly means all new user registations and content posted between 08-08-2020 and 12-24-2020 has been wiped. We apologize for the inconvenience and have taken measures to prevent this error from happening in t... |
Intro
This quick reference shows the layout of a neural network to help keep the math consistent.
Initialization Parameters
Assume \( n^{[l]} \) is the number of units in layer \( l \) and \( L \) is total number of layers. For a given input \( \mathbf{X} \in \mathbb{R}^{12288 \times 209} \) and \( m = 209 \) training ... |
I'm a Mechatronics engineer | Pro Python Developer | AI Enthusiast
In this tutorial, I will guide you on how to detect emotions associated with textual data and how can you apply it in real-world applications.
Understanding emotions associated with text is commonly known as sentiment analysis.
You can apply it to perfo... |
simple-graph
This is a simple graph database in SQLite, inspired by "SQLite as a document database"
Structure
The schema consists of just two structures:
Nodes - these are any json objects, with the only constraint being that they each contain a unique idvalue
Edges - these are pairs of node idvalues, specifying the di... |
Según tengo entendido, al utilizar la interfaz de Spark Scala debemos tener cuidado de no serializar innecesariamente un objeto completo cuando solo se necesitan uno o dos atributos: ( http://erikerlandson.github.io/blog/2015/03/ 31 / higienic-closures-for-scala-function-serialization / )
¿Cómo funciona esto cuando se ... |
Tengo pruebas dentro del mismo repository (archivos pytest.ini separados) que requieren diferentes complementos de pytest. ¿Cómo puedo deshabilitar varios complementos en pytest.ini sin desinstalarlos?
https://docs.pytest.org/en/latest/plugins.html#findpluginname
addopts = --nomigrations --reuse-db -s -p no:pytest-spli... |
Inviare e-mail massivi da modello con Python
Inviare un'email collettiva a un gruppo di destinatari utilizzando un modello con Python
Creare gruppo con Python
Prendere la lista di campo di gruppo con Python
Aggiungere un campo ad un gruppo con Python
Cancellare un campo da un gruppo con Python
Eliminare un contatto da ... |
I use ESP8266 NodeMcu V3 board and built circuit similar to this one https://i.ytimg.com/vi/eFeOSiL-IBQ/hqdefault.jpg
At the beginning I tried to count "frequency"
In code bellow i expected -/+ 100 ticks per second (50Hz), but I got 200-208.
Code: Select all
import micropython
micropython.alloc_emergency_exception_buf(... |
ExtUtils::MakeMaker - Create a module Makefile
use ExtUtils::MakeMaker;
WriteMakefile(
NAME => "Foo::Bar",
VERSION_FROM => "lib/Foo/Bar.pm",
);
This utility is designed to write a Makefile for an extension module from a Makefile.PL. It is based on the Makefile.SH model provided by Andy Doughe... |
X軸もY軸も2本にするためのグラフの作成方法
前回、X軸を2本にする方法を解説し、さらにX軸もY軸も2本にしようとしたのですが、失敗しました。
今回はX軸もY軸も2本にする方法を解説していきたいと思います。
前回は、「ax2 = ax1.twinx().twiny()」として失敗しました。
つまり2つ目のグラフを作成し、そこに2本目のX軸、Y軸の両方を指定する方法というわけです。
しかしこれでは軸名が表示されなかったり、軸のフォントサイズが変更できない箇所が出てくるということでした。
では正解は一体何なのか？
実は正解は「もう一つのグラフ、つまり3つ目のグラフを作成する」です。
つまり軸名やサイズを操作するためのグラフをもう一つ作っ... |
oslo-config-generated --namespace oslo.privsep
Trying to setup an all-in-one vm devstack but it seems to fail at +lib/neutron-legacy:_configure_neutron_common:697 exec ./tools/generate_config_file_samples.sh
It seems to trip up on the neutron.conf on namespace oslo.privsep but i am not sure what is wrong here?
-bash-4.... |
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ÑеализаÑий. Ð¡ÐµÐ³Ð¾Ð´Ð½Ñ Ñ Ð²Ð°Ñ Ð²Ñе Ñ
ÑаниÑÑÑ Ð² поÑÑгÑÐµÑ Ð° завÑÑа в монге. ÐнвеÑÑÐ¸Ñ Ð·Ð°Ð²Ð¸ÑимоÑÑ... |
April 2020
To display fields of a model in listview page of the admin, we use the instruction :
list_display = ('user','refShop','title')
which tells django admin which fields to display. But what if we want to add a custom field such as a button, a link or a calculated field ?
You can find the source code in this repo... |
This section describes running a Spark wordcount application in Python.
Upload the to-be-processed file to COS first. If the file is in your local file system, upload it directly through the COS Console; if it is in the EMR cluster, upload it by running the following Hadoop command:
[hadoop@10 hadoop]$ hadoop fs -put $... |
概述
本章将学习到：如何在Flask应用程序中进行错误处理（策略）。
这里将暂时停止为microblog添加新功能，而是讨论处理bug的策略，因为它们可能总是无处不在。为了帮助说明此主题，故意在上一节的代码中遗留一个bug。等待着我们去发现它。
在Flask中的错误处理
在Flask应用程序中发生error时会发生什么？找到问题的最佳方法是亲自体验，即重现它。启动应用程序，并确保已有两个注册用户。用其中一个用户身份登录后（在此以用户名+密码 susan cat为例），打开【Profile】页面并点击【Edit you profile】链接。在个人资料编辑页面，尝试将用户名更改为已注册的另一个用户的用户名（以 belen为例）并提交，... |
lib_pypy/_ctypes/function.py using old print style in pypy3
The file (https://foss.heptapod.net/pypy/pypy/-/blob/branch/py3.7/lib_pypy/_ctypes/function.py#L693) at line 693 is using a python 2 style print redirect to print to stderr. Should be:
if f is None:
f = sys.__stderr__
print(code, fi... |
どーも、ぐるたか@guru_takaです。
Perfume「あーちゃん・かしゆか・ノッチ」の分類器を作ろうと思い、データ集め→顔だけ画像を切り取ってみました！
ここでは、PythonでGoogleから画像スクレイピングする方法と、顔だけ切り取って再保存する方法を紹介します。前処理の参考になれば幸いです！
Googleから画像スクレイピングする方法
結論、こちらのリポジトリ（Licence：MIT）をクローンし、スクレイピングすると楽ちんです！
参考 Joeclinton1/google-images-download at patch-1Github
本家だと以下の記事と同じようなエラーが出たので、Forkされ改善されたソースを活用... |
ExtUtils::MakeMaker - Create a module Makefile
use ExtUtils::MakeMaker;
WriteMakefile( ATTRIBUTE => VALUE [, ...] );
This utility is designed to write a Makefile for an extension module from a Makefile.PL. It is based on the Makefile.SH model provided by Andy Dougherty and the perl5-porters.
It splits the task of gene... |
blob: 480c81b7960ba6bc8df896bb4a2e80a68bf47a53 (
plain
)
# Copyright (C) 2009, Tutorius.org
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your optio... |
Using the Wikipedia API
As mentioned in another answer, Wikipedia provides an HTTP API for fetching article content, and you can use it to get the content in much cleaner formats than HTML. Often this is much better (for example, it's a much better choice for this little project I wrote that extracts the first sentence... |
Python Guidelines: Introduction:
Design principles
Idiomatic
Consistent
Approachable
Diagnosable
Dependable
Python Design Principles:–PEP 20 — The Zen of Python, import this
General Guidelines:
Gitub:
Supported python versions:
Code style:
Naming conventions:
service_client = ServiceClient()
service_client.list_things(... |
It seems common practice in Flask to start like this:
from flask import Flask
from flaskext.sqlalchemy import SQLAlchemy
app = Flask(__name__)
SQLALCHEMY_DATABASE_URI = 'something'
app.config.from_object(__name__)
db = SQLAlchemy(app)
And then import and use app and db everywhere. But when you create db like this, it ... |
Two months ago I found the trove of papers on Nancy Leveson’s MIT homepage1, which planted the seed of a thought. Academic homepages are full of interesting reading (unpublished rambles; administrivia; pre-prints, the published versions of which are inaccessible behind paywalls). Academic homepages are also woefully il... |
原生Celery，非djcelery模块，所有演示均基于Django2.0
celery是一个基于python开发的简单、灵活且可靠的分布式任务队列框架，支持使用任务队列的方式在分布式的机器/进程/线程上执行任务调度。采用典型的生产者-消费者模型，主要由三部分组成：
我的异步使用场景为项目上线：前端web上有个上线按钮，点击按钮后发请求给后端，后端执行上线过程要5分钟，后端在接收到请求后把任务放入队列异步执行，同时马上返回给前端一个任务执行中的结果。若果没有异步执行会怎么样呢？同步的情况就是执行过程中前端一直在等后端返回结果，页面转呀转的就转超时了。
1.安装RabbitMQ，这里我们使用RabbitMQ作为broker，安装完成后... |
A project I was working on required the usage of the Separating Axis Theorem to detect collisions between two convex polygons in real time. So I implemented a basic class (ConvexFrame in the code) to keep track of the information about the polygon that is necessary for the SAT algorithm. I implemented it, and it works,... |
You can use word embeddings take a look at word2vec and glove. There are many good tutorials on word2vec, but very briefly word2vec represents a word as a vector, so that you can do a similarity comparison, and also allows addition and subtraction of vectors.
The embeddings are already available, for example here: http... |
Доступно с лицензией Spatial Analyst.
Сводка
Оценивает по принципу «ячейка-за-ячейкой», во сколько раз значения в наборе растров равны другому растру.
Иллюстрация
Использование
В перечне входных растров может быть задано произвольное число растров.
Если для параметра Входной растр значений (in_value_raster в Python) ук... |
Beginner · 1 hour
Working with ASA using Python
This tutorial demonstrates the steps involved in working with a basic Algorand Standard Asset (ASA) using the Python SDK. This tutorial includes Asset Reconfigure, Opt-In, Asset Transfer, Asset Freeze, Asset Revoke, and Asset Destroy.
Completed code for this tut... |
Me ha desconcertado un extraño comportamiento de los locals() de Python locals() .
Básicamente quiero obtener un artículo del diccionario de locals() en una comprensión de diccionario, pero falla. Es una cosa extremadamente básica, así que:
>>> foo=123 >>> bar=345 >>> baz=678 >>> {k: locals()[k] for k in ('foo','bar','... |
In my Home Assistant setup, I created an SMTP notification that would email my phone’s SMS gateway when certain conditions were met. Except it didn’t work.
When monitoring the log file, I found the following when the condition was supposed to trigger:
WARNING (MainThread) [homeassistant.core] Unable to find service not... |
April 2020
Sometimes we want to display data which come from a database view and not from a Django model. It could be a view calculated by a stored procedure. It is super easy to do that.
We just need to declare the model corresponding to the view in our models.py file but with the specific keyword managed=False in the... |
Is it intended behavior that hMailServer will not add the SpamAssassin score to its own score unless the SpamAssassin score is greater than or equal to the SpamAssassin spam threshold (i.e., SpamAssassin tags it as spam)? I've seen some discussions on this and it is eventually just dropped and the people usually just l... |
今天整理python里面5个常用的高阶函数（filter, map, reduce, reversed, sorted）和三个迭代器函数(iter, next, enumerate)， 然后是辨析迭代器， 生成器， 可迭代对象三个概念名词， 最后整理python的几个好用迭代器(accumulate, compress, dropwhile, takewhile, tee, repeat, product, zip_longest) ， 经过这次的学习， 可以在以后的编程中写出比较高效和优雅的代码。 比如给定m, 计算res = 1! + 2! + 3!...+m!, 我们之前可能是先写一个求阶乘的函数，并且可能求阶乘还写的比较复杂... |
Can PDF exchange viewer pro perform proximity searches? For example, search for text where two words are within a specified distance from each other. If so, what would be a basic example in typing one into Xchange viewer's search field?
Paul - Tracker Supp
Site Admin
Posts:5139
Joined:Wed Mar 25, 2009 10:37 pm
Location... |
Data modes
Creating mini-batches of data can be tricky when the samples have different shapes.
In traditional neural networks, we're used to stretching, cropping, or padding our data so that all inputs to our models are standardized. For instance, images of different sizes can be modified so that they fit into a tensor... |
People that know me will tell you I am a big fan of the SOLID Design Principles championed by Robert C. Martin (Uncle Bob). Over the years I've used these principles in C#, PHP, Node.js, and Python. Everywhere I took them they were generally well-received...except when I started working in Python. I kept getting commen... |
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File "SQEAmain.py", line 157, in <module>
img = cv2.resize(img,... |
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In addition to processing bathymetric data, my research on lakes requires sub-bottom profiling, or the collection of low-energy seismic data collected similarly to bathymetric data. The system we use is the SyQwest HydroBox, which, due to many hardware and software limitations, has been particularly frustrating. Still,... |
Sea S (w) un conjunto de palabras. Quiero generar todas las combinaciones n posibles de subconjuntos s para que la unión de esos subconjuntos sea siempre igual a S (w).
Así que tienes un conjunto (a, b, c, d, e) y no serás todas las combinaciones de 3:
((a B C D e))
((a B C D e))
((a B C D e))
((a B C D e))
etc …
Para ... |
SpaceVim and vim-fireplace: Install guide
curl -sLf https://spacevim.org/install.sh | bash
git clone https://github.com/SpaceVim/SpaceVim.git ~/.SpaceVim
alias svim='vim -u ~/.SpaceVim/vimrc'
See the quick start guide for other install options
Make vimproc Library
[vimproc] vimproc's DLL: "~/.SpaceVim/bundle/vimproc.v... |
日常提交记录
数据统一处理
train_data_path = "data/zhengqi_train.txt"
test_data_path = "data/zhengqi_test.txt"
source = pd.read_table(train_data_path, sep='\t').values
test_data = pd.read_table(test_data_path, sep='\t').values
source_data = source[:, 0:-1]
source_target =source[:, -1]
# 标准化
source_mean = (source_data - np.min(sourc... |
Black Mamba - open quickly and other shortcuts
Hi all,
I mainly work with Pythonista on the biggest iPad with external keyboard. And I miss some features like Open quickly, registering shortcuts for my scripts, ... so I decided to add them by myself. Hope it will be natively supported in the future.
Here's screen recor... |
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