pipPython 包安装和管理工具
pip 是一个 Python 包安装与管理工具。
从PyPI安装软件包：
$ pip install SomePackage
[...]
Successfully installed SomePackage
安装已经从PyPI下载或从其他地方获得的软件包：
$ pip install SomePackage-1.0-py2.py3-none-any.whl
[...]
Successfully installed SomePackage
显示安装了哪些文件：
$ pip show --files SomePackage
Name: SomePackage
Version: 1.0
Location: /my/env/lib/pythonx.x/site-packages
Files:
../somepackage/__init__.py
[...]
列出哪些软件包已过期：
$ pip list --outdated
SomePackage (Current: 1.0 Latest: 2.0)
升级软件包：
$ pip install --upgrade SomePackage
[...]
Found existing installation: SomePackage 1.0
Uninstalling SomePackage:
Successfully uninstalled SomePackage
Running setup.py install for SomePackage
Successfully installed SomePackage
卸载软件包：
$ pip uninstall SomePackage
Uninstalling SomePackage:
/my/env/lib/pythonx.x/site-packages/somepackage
Proceed (y/n)? y
Successfully uninstalled SomePackage
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