Python pip安装包指令用法及安装库检索

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Python pip安装包指令用法及安装库检索

2023-09-19 21:02| 来源: 网络整理| 查看: 265

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文章目录 前言一、PIP指令用法:在线安装方式离线安装方式: 二、pip 安装库都有什么,如何检索?总结

前言

pip 是python自带的包管理工具,其可以用于Python 安装包的下载、安装、升级及检索功能,可以在命令行中直接进行在线连接到安装库安装所需要的安装包;

所用Python 版本: 3.10.4 自带pip 版本: 22.0.4

一、PIP指令用法: 在线安装方式 在命令行直接输入pip [help]+ 【回车】,其中help 可不写 Usage: pip [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. check Verify installed packages have compatible dependencies. config Manage local and global configuration. search Search PyPI for packages. cache Inspect and manage pip's wheel cache. index Inspect information available from package indexes. wheel Build wheels from your requirements. hash Compute hashes of package archives. completion A helper command used for command completion. debug Show information useful for debugging. help Show help for commands. General Options: -h, --help Show help. --debug Let unhandled exceptions propagate outside the main subroutine, instead of logging them to stderr. --isolated Run pip in an isolated mode, ignoring environment variables and user configuration. --require-virtualenv Allow pip to only run in a virtual environment; exit with an error otherwise. -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. Option is additive, and can be used up to 3 times (corresponding to WARNING, ERROR, and CRITICAL logging levels). --log Path to a verbose appending log. --no-input Disable prompting for input. --proxy Specify a proxy in the form [user:passwd@]proxy.server:port. --retries Maximum number of retries each connection should attempt (default 5 times). --timeout Set the socket timeout (default 15 seconds). --exists-action Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort. --trusted-host Mark this host or host:port pair as trusted, even though it does not have valid or any HTTPS. --cert Path to PEM-encoded CA certificate bundle. If provided, overrides the default. See 'SSL Certificate Verification' in pip documentation for more information. --client-cert Path to SSL client certificate, a single file containing the private key and the certificate in PEM format. --cache-dir Store the cache data in . --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. --no-python-version-warning Silence deprecation warnings for upcoming unsupported Pythons. --use-feature Enable new functionality, that may be backward incompatible. --use-deprecated Enable deprecated functionality, that will be removed in the future.

常用方法:

显示pip指令的帮助信息: pip [指令] -h安装库文件: pip install [package name]下载安装包 pip download [package name]查看已经安装的包 pip list查看安装包的详细信息 pip show [package name] # 查看前必须确认安装包已经安装升级安装包,包括pip pip install -u [package name]

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注意: pip指令是对应相应的python 版本的,通过pip -V 版本检查可以确认pip是否适合当前python版本

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离线安装方式:

除了进行在线安装外,在网络较差或无法在线安装的情况下,可以到第三方库里寻找相应库的Wheel文件下载到本地,然后在本地运行命令行,执行 'cd ’ 进入到文件夹后运行指令 pip install [wheel文件名称] 即可。

二、pip 安装库都有什么,如何检索?

pip 拥有丰富的第三方库支持,但第三方库在哪,如何找到自己想要的库呢?

较简单的方式就是官方pypi网站去查找 Pypi官方库网站

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总结

python 的强大来源于其丰富的第三方库,所以熟练掌握pip指令,才能更好的发挥python的强大功能!



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