Python

tips

交互退出

Unix/Linux:Control-D
Windows:Control-Z
quit()

脚本模式

#! /usr/bin/env python
#! /usr/bin/env python2
#! /usr/bin/env python3

编码声明

# -*- coding: encoding -*-

pip

pip3 config set global.index-url https://mirrors.aliyun.com/pypi/simple
# http host
pip3 config set global.trusted-host "10.3.3.58"
pip3 config set global.index-url http://10.3.3.58:3141/xxy/pypi/+simple

virtual environment

virtualenv/virtualenv2(for python2)

pyvenv(不再推荐-3.5, 弃用-3.6)

venv(3.5+ recommended)

提示

On Debian/Ubuntu systems, you need to install the python3-venv package using the following command.

apt install python3-venv

You may need to use sudo with that command.

lint and format

pylint太严格，使用flake8
autopep8仅格式化
yapf是clang-format，带重排

Test

Framework

Unittest 标准库
pytest 新型，可以考虑
Nose处于维护状态，Nose2还待发展
但Nose更兼容Unittest，比pytest流行度高很多