如何使用python 2.7.10 内置pip安装package
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发布时间：2022-04-23 12:53
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热心网友
时间：2022-04-18 04:56
python使用内置的pip安装package很简单，以WINDOWS下使用为例说明，使用命令pip install 包名即可。
1、在命令行下切换到python目录，一般为c:\python27，pip在python安装目录的Scripts目录下，命令如下：
cd c:\python27\scripts
2、切换到目录之后直接使用命令安装即可，命令如下，例如要安装flask，则使用：
pip insatll flask
3、其它说明，如果卸载包则使用pip uninstall 包名 来卸载包，以下为pip参数说明：
Usage:
pip <command> [options]
Commands:
install Install packages.
download Download 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.
hash Compute hashes of package archives.
completion A helper command used for command completion
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.
4、注意事项，如果在windows下安装失败提示：Unable to find vcvarsall.bat，则说明这个包需要编译，则要在WINDOWS系统中安装visual studio 2008。
5、linux下pip安装package与WINDOWS的语法相同，使用pip install SomePackage
即可，linux下需要注意的是权限问题，应当使用root用户执行命令。
