pip官网：https://pypi.python.org/pypi/pip

pip有点类似RedHat里面的yum，安装Python包非常方便。本节详细介绍pip的安装、以及使用方法。

安装

linux

执行下列命令

wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py

windows

1. 确定python已经配置到环境变量
2. 在官网下载 get-pip.py
3. 在命令行输入 python get-pip.py

更详细的介绍，请在官网查阅

使用

通过pip help可以很清楚的看到使用方法

[gaoxuan@AY140416102243006a45Z ~]$ pip help
​
Usage:
  pip <command> [options]
​
Commands:
  install                     Install packages.
  uninstall                   Uninstall packages.
  freeze                      Output installed packages in requirements format.
  list                        List installed packages.
  show                        Show information about installed packages.
  search                      Search PyPI for packages.
  wheel                       Build wheels from your requirements.
  help                        Show help for commands.
​
General Options:
  -h, --help                  Show help.
  --isolated                  Run pip in an isolated mode, ignoring environment variables and user configuration.
  -v, --verbose               Give more output. Option is additive, and can be used up to 3 times.
  -V, --version               Show version and exit.
  -q, --quiet                 Give less output.
  --log <path>                Path to a verbose appending log.
  --proxy <proxy>             Specify a proxy in the form [user:passwd@]proxy.server:port.
  --retries <retries>         Maximum number of retries each connection should attempt (default 5 times).
  --timeout <sec>             Set the socket timeout (default 15 seconds).
  --exists-action <action>    Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup.
  --trusted-host <hostname>   Mark this host as trusted, even though it does not have valid or any HTTPS.
  --cert <path>               Path to alternate CA bundle.
  --client-cert <path>        Path to SSL client certificate, a single file containing the private key and the certificate in PEM format.
  --cache-dir <dir>           Store the cache data in <dir>.
  --no-cache-dir              Disable the cache.
  --disable-pip-version-check
                              Don't periodically check PyPI to determine whether a new version of pip is available for download. Implied with --no-index.