Python:如何安装与使用 pip

机器视觉001 2020-11-13 02:49:50
Python 安装 pip 使用


Python:如何安装与使用 pip

pip is already installed if you are using Python 2 >=2.7.9 or Python 3 >=3.4 downloaded from python.org or if you are working in a Virtual Environment created by virtualenv or pyvenv. Just make sure to upgrade pip.

升级 pip

On Linux or macOS:

pip install -U pip

On Windows:

python -m pip install -U pip

查看 pip 版本

pip -V
// 或者
pip --version
// 结果
pip 20.2.4 from c:\program files\python\python39\lib\site-packages\pip (python 3.9)

列出 pip 已安装的包

pip list
// 结果
Package Version
---------- -------
pip 20.2.4
setuptools 49.2.1

显示安装包信息

// pip show SomePackage Name
pip show setuptools
// 结果
Name: setuptools
Version: 49.2.1
Summary: Easily download, build, install, upgrade, and uninstall Python packages
Home-page: https://github.com/pypa/setuptools
Author: Python Packaging Authority
Author-email: distutils-sig@python.org
License: UNKNOWN
Location: c:\program files\python\python39\lib\site-packages
Requires:
Required-by:

查看可升级的包

pip list -o
// 结果
Package Version Latest Type
---------- ------- ------ -----
setuptools 49.2.1 50.3.2 wheel

升级包

pip install --upgrade SomePackage

安装包

pip install SomePackage # 最新版本
pip install SomePackage==1.0.4 # 指定版本
pip install 'SomePackage>=1.0.4' # 最小版本

比如我要安装 Python。用以下的一条命令就可以,方便快捷。

pip install Python==3.9

升级包

pip install --upgrade SomePackage

升级指定的包,通过使用==, >=, <=, >, < 来指定一个版本号。

卸载包

pip uninstall SomePackage

 

 

 

 

版权声明
本文为[机器视觉001]所创,转载请带上原文链接,感谢
https://blog.csdn.net/liubing8609/article/details/109386921

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