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pip 使用详解
pip 安装包
pip install 包名
pip 查看是否安装
pip show --file 包名
pip 检查哪些包需要更新
pip list --outdated
pip 升级包
pip install --upgrade 包名
pip 卸载包
pip uninstall 包名
# pip --help Usage: pip<command>[options] Commands: install 安装包. uninstall
卸载包. freeze 按着一定格式输出已安装包列表 list 列出已安装包. show 显示包详细信息. search 搜索包，类似yum里的search.
wheel Buildwheelsfromyourrequirements. zip 不推荐.Zipindividualpackages. unzip
不推荐.Unzipindividualpackages. bundle 不推荐.Createpybundles. help 当前帮助.
GeneralOptions: -h,--help 显示帮助. -v,--verbose 更多的输出，最多可以使用3次 -V,--version
现实版本信息然后退出. -q,--quiet 最少的输出. --log-file<path>
覆盖的方式记录verbose错误日志，默认文件：/root/.pip/pip.log --log<path> 不覆盖记录verbose输出的日志.
--proxy<proxy> Specifyaproxyintheform[user:passwd@]proxy.server:port.
--timeout<sec> 连接超时时间(默认15秒). --exists-action<action>
Defaultactionwhenapathalreadyexists:(s)witch,(i)gnore,(w)ipe,(b)ackup.
--cert<path> 证书.
