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Performance analysis of Django / Flag / tornado three web frameworks

Write it at the front : The data in this article relate to the problems encountered before , About once http How long does it take from request to...

2021-04-21 11:10:39 作者:hzf16321

Performance analysis of Django / Flag / tornado three web frameworks

Really understand the difference between Django and flash framework in Python

Talk about Python in Django The framework and Flask The difference between frames before , We need to discuss the following questions first . One 、 ...

2021-04-21 11:10:56 作者:hzf16321

Really understand the difference between Django and flash framework in Python

Take the first n maximum or minimum values in the dictionary by value in Python

with open(textinfo,'rb') as fp: data=fp.read() text=unicode(data,'gbk') cnt=Counter() for word in text: cnt word +=1 cnt=dict(cnt) L=sorted(cnt.items(...

2021-04-21 11:10:59 作者:hzf16321


Method of Python Unicode STR mutual conversion

Ordinary strings can be encoded into Unicode character string , It depends on which code you choose : unicodestring = u'Hello world' / take Unicode ...

2021-04-21 11:11:06 作者:hzf16321


Python gets the data length or time length of the audio file

import wave import contextlib fname = '/tmp/test.wav' with contextlib.closing(wave.open(fname,'r')) as f: frames = f.getnframes() rate = f.getframerat...

2021-04-21 11:11:09 作者:hzf16321


Beginners use pandas Feature Engineering

Pan Chuang AI Share author PROCRASTINATOR compile Flin source analyticsvidhya summary Feature engineering is one of the most critical step...

2021-04-21 11:14:59 作者:Pan Chuang AI


Python中的多进程、多线程和协程

本文中的内容来自我的笔记。撰写过程中参考了胡俊峰老师《Python程序设计与数据科学导论》课程的内容。 并发处理:多进程和多线程 前置 概念: 并发:一段时间内同时推进多个任务,但 不一定 要在一个时刻同时进行多个任务。 并行:一段时间内同时推进多个任务,且在一个时刻要同时进行多个任务。 并行是并发...

2021-04-21 11:18:01 作者:bbsmax

Python中的多进程、多线程和协程

Python machine learning training camp (2020 Edition)

Click to download ——Python Machine learning training camp (2020 edition ) (https://pan.baidu.com/s/1RtVX1DstpWA3EQY0PQSiJg) Extraction code : 8srw ...

2021-04-21 11:24:31 作者:Kafgino


Multi process, multi thread and co program in Python

The content of this article comes from my notes . In the process of writing, I refer to Mr. Hu Junfeng 《Python Introduction to programming and data s...

2021-04-21 11:31:03 作者:bbsmax

Multi process, multi thread and co program in Python

Python GUI编程:tkinter简介

本文内容来自我的笔记。撰写过程中参考了胡俊峰老师《Python程序设计与数据科学导论》课程的内容。 本文包含大量代码,阅读时请自行运行以观察效果。 目录 GUI编程:Tkinter包 ( gui编程:tkinter包) 窗口 ( 窗口) 常用组件 ( 常用组件) 布局方案 ( 布局方案) Pack方...

2021-04-21 11:52:44 作者:TurboBoost


Python GUI Programming: introduction to Tkinter

The content of this article comes from my notes . In the process of writing, I refer to Mr. Hu Junfeng 《Python Introduction to programming and data s...

2021-04-21 11:54:21 作者:TurboBoost


Python 3.10来了,switch语法终于出现

机器之心报道 编辑:陈萍 不用再自己琢磨如何实现 switch 功能了。 对于从事数据科学和人工智能领域的人们来说,Python 是大家的首选编程语言。根据最近的一项调查,27% 的程序员开发职位要求掌握 Python 语言,今年年初这一数字还只是 18.5%。 Python 流行的原因在于其拥有非...

2021-04-21 12:48:20 作者:机器之心


Pandas最详细教程来了

导读:在Python中,进行数据分析的一个主要工具就是Pandas。Pandas是Wes McKinney在大型对冲基金AQR公司工作时开发的,后来该工具开源了,主要由社区进行维护和更新。 Pandas具有NumPy的ndarray所不具有的很多功能,比如集成时间序列、按轴对齐数据、处理缺失数据等常...

2021-04-21 13:03:03 作者:墨眉朱砂丶

Pandas最详细教程来了

Here comes Python 3.10, the switch syntax

Almost Human reports edit : Chen Ping No need to figure out how to do it yourself switch The function of . For people in the field of data sci...

2021-04-21 13:12:31 作者:The heart of machine


Here comes pandas' most detailed tutorial

Reading guide : stay Python in , One of the main tools for data analysis is Pandas.Pandas yes Wes McKinney In big hedge funds AQR It was developed at...

2021-04-21 13:22:09 作者:Ink eyebrow and cinnabar

Here comes pandas' most detailed tutorial

基于企业微信的群机器人制作(Python实现)

基于企业微信的群机器人制作 随着企业微信的普及,越来越多的公司、单位用上了企业微信,自从用了企业微信确实办(jia)公(ban)效(shi)率(jian)高(chang)。不得不说企业微信是一个好产品,比如今天要谈的 群机器人 就可以帮我们完成一些重复繁琐的提醒工作。话不多说先来看一个使用场景吧!...

2021-04-21 14:07:36 作者:wan

基于企业微信的群机器人制作(Python实现)

Group robot production based on enterprise wechat (implemented in Python)

Group robot production based on enterprise wechat With the popularity of wechat in enterprises , More and more companies 、 The company uses wechat...

2021-04-21 14:09:52 作者:wan

Group robot production based on enterprise wechat (implemented in Python)

Pytest:如何使用全功能的Python测试框架?小白必看

我们在写自动化的过程中,用例的断言也是至关重要的,断言可以帮助我们判断用例测试点是否成功和失败。当然在我们这么强大的pytest框架中,断言也是比较强大的。为什么?继续往下看。 ! 在这里插入图片描述 (https://s4.51cto.com/images/blog/202104/21/dc0f3...

2021-04-21 14:16:55 作者:测试小洁呀

Pytest:如何使用全功能的Python测试框架?小白必看

Python+Appium实现自动化测试(macOS 10.15.7)

一、环境准备 1.脚本语言: Python3.x IDE:安装 Visual Studio Code 2.安装 Java JDK 、 Android SDK 3.adb环境,path添加 %Android_SDK% platform tools 4.安装 Appium for mac ,官网地址 h...

2021-04-21 14:16:58 作者:测试小洁呀

Python+Appium实现自动化测试(macOS 10.15.7)

Pytest: how to use a fully functional Python testing framework? Xiaobai must see

We're in the process of writing automation , Assertions of use cases are also crucial , Assertions can help us determine whether a test case test poi...

2021-04-21 14:17:23 作者:Test Xiaojie

Pytest: how to use a fully functional Python testing framework? Xiaobai must see

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