Python installs multiple packages/PIP usage

List installed Packages

pip freezeor pip list

Export Requirements.txt

pip freeze > <目录>/requirements.txt

installation package Online Installation

pip install <包名>or pip install -r requirements.txt

Specify the version by using = = >= <= > <, and install the latest version without writing

The Requirements.txt content format is:

Apscheduler==2.1.2django==1.5.  4mysql-connector-python==2.0.  1mysql-python==1.2.  3pil==1.1.  7south==1.0.  2django-grappelli==2.6.  3django-pagination==1.0.  7                   

Install the Local installation package

pip install <目录>/<文件名>or pip install --use-wheel --no-index --find-links=wheelhouse/ <包名>

< package name > previous space

can be shortened to

pip install --no-index -f=<目录>/ <包名>

Uninstalling packages

pip uninstall <包名>or pip uninstall -r requirements.txt

Upgrade Package

pip install -U <包名>

Or: Pip Install < package name >--upgrade

Upgrade Pip

pip install -U pip

Show the directory where the package resides

pip show -f <包名>

Search Packages

pip search <搜索关键字>

Querying packages that can be upgraded

pip list -o

Download the package without installing

pip install <包名> -d <目录>or pip install -d <目录> -r requirements.txt

Packaged

pip wheel <包名>

Replacement of domestic pypi mirror domestic pypi Mirror

• V2ex:pypi.v2ex.com/simple
• Watercress: Http://pypi.douban.com/simple
• China University of Science and Technology: http://pypi.mirrors.ustc.edu.cn/simple/

Refers to the order of the secondary installation source

pip install <包名> -i http://pypi.v2ex.com/simple

Specify the global installation source

In Unix and MacOS, the configuration file is: $HOME/.pip/pip.conf
On Windows, the configuration file is:%home%\pip\pip.ini

[global]timeout = 6000  index-url = http://pypi.douban.com/simple


Reference Source: http://www.cnblogs.com/xueweihan/p/4981704.html

Python installs multiple packages/PIP usage