centos6下從源碼安裝setuptools和pip

1. 下載setuptools及pip的源碼包

	setuptools與pip都是python的模塊

	setuptools源碼包: https://pypi.python.org/pypi/setuptools

	pip源碼包: https://pypi.python.org/pypi/pip#downloads

2. 安裝setuptools與pip

目前下載的版本是setuptools-12.0.5.tar.gz與pip-6.0.6.tar.gz

用tar命令解壓, 格式:tar -xzvf xxxx.tar.gz

先安裝setuptools, 進行setuptools的源碼根目錄下, 執行以下命令進行setuptools模塊的安裝:

# python setup.py install

安裝完setuptools后, 接着安裝pip, 進入pip的源碼包根目錄下, 執行以下命令進行安裝:

# python setup.py build
# python setup.py install

安裝完pip后. 看看pip都安裝在哪里. 執行以下命令:

# whereis pip

然后再執行 # pip  命令並回車, 如果無法用pip命令, 則可通過創建pip軟鏈接, 執行以下命令:

# ln -s /usr/local/bin/pip /usr/bin/pip

好啦, 檢測pip命令是否正常:

# pip

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.
  zip                         DEPRECATED. Zip individual packages.
  unzip                       DEPRECATED. Unzip individual packages.
  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.

如果不創建軟鏈接, 也可以直接使用pip的路徑來執行命令也是可以的, 如下:

# /usr/local/bin/pip

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.
  zip                         DEPRECATED. Zip individual packages.
  unzip                       DEPRECATED. Unzip individual packages.
  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.

如果運氣不好， 出現如下信息：

ImportError: No module named 'pip._vendor.requests'

這是因為openssl模塊沒安裝好， 可執行以下命令來安裝：

# yum install openssl-devel

OK, Enjoy it!!!