pip 詳細

 

 

pip的安裝

windows

其實在windows下是默認安裝了pip工具的，只是沒有將其所在目錄加入Path，導致命令查找不到。 


將python安裝目錄下的scripts目錄加入環境變量Path中即可。

Linux

執行下面命令即可完成安裝

# wget https://bootstrap.pypa.io/get-pip.py --no-check-certificate
# python get-pip.py

 

pip使用

安裝包

pip install package_name

pip install -t /usr/local/lib/python2.7/site-packages/ xlrd
本地安裝

pip install applicationName==version
可以在pip後使用 == 運算符指定版本號

 

查看某個已安裝包

pip show --files package_name

pip list
查看所有安裝包

 

檢查哪些包需要更新

pip list --outdated

 

升級包

pip install --upgrade package_name

pip install --upgrade keras==2.1.0 升級到指定版本

 

卸載包

pip uninstall package_name

 

常見錯誤

ImportError No module named setuptools解決

缺少模塊

 

使用pip –help命令可以查看pip幫助手冊

# pip --help

Usage:
  pip <command> [options]

Commands:
  install                     Install packages.  安裝包
  download                    Download packages. 下載包
  uninstall                   Uninstall packages. 卸載包
  freeze                      Output installed packages in requirements format. 按着一定格式輸出已安裝包列表
  list                        List installed packages. 列出已安裝包
  show                        Show information about installed packages. 顯示包詳細信息
  check                       Verify installed packages have compatible dependencies.檢查包的依賴關係是否完整
  config                      Manage local and global configuration.管理配置
  search                      Search PyPI for packages.搜索包
  wheel                       Build wheels from your requirements.
  hash                        Compute hashes of package archives.計算包的hash值 
  completion                  A helper command used for command completion.
  help                        Show help for commands.

General Options:
  -h, --help                  Show help.    顯示幫助.
  --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. 更多的輸出，最多可以使用3次
  -V, --version               Show version and exit.    現實版本信息然後退出.
  -q, --quiet                 Give less output. Option is additive, and can be used up to 3 times (corresponding to WARNING, ERROR, and CRITICAL logging levels).  最少的輸出. 
  --log <path>                Path to a verbose appending log.  不覆蓋記錄verbose輸出的日誌.
  --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, (a)bort).
  --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.
  --no-color                  Suppress colored output

轉載 ：https://blog.csdn.net/guoyajie1990/article/details/81089915