查看Python的版本
python --version
Conda 查看所有虚拟环境
conda info --env
Conda 进入选择某个虚拟环境
conda activate xxx
pip 卸载某个包
pip uninstall imbalanced-learn
pip 安装具体某个版本的包
pip install imbalanced-learn==0.8.0
pip 查看某个包的详细信息
$ pip show <package-name>
结果如下:
$ pip show pip
Name: pip
Version: 18.1
Summary: The PyPA recommended tool for installing Python packages.
Home-page: [https://pip.pypa.io/](https://pip.pypa.io/)
Author: The pip developers
Author-email: [email protected]
License: MIT
Location: /usr/local/lib/python2.7/site-packages
Requires:
Required-by:
pip 查看所有安装的包和版本
pip list
结果如下
Package Version
----------------------- ---------
absl-py 0.15.0
astunparse 1.6.3
cachetools 4.2.4
certifi 2021.10.8
charset-normalizer 2.0.9
click 8.0.4
colorama 0.4.4
cx-Oracle 8.3.0
cycler 0.11.0
dataclasses 0.8
et-xmlfile 1.1.0
Flask 2.0.3
pip 查看某个包有哪些版本
可以用 pip install package_name== 进行查看包有哪些版本。
pip install panda==
Collecting panda==
Could not find a version that satisfies the requirement panda== (from versions: 0.1.5.macosx-10.9-x86_64, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.3.1)
No matching distribution found for panda==
pip 创建 requrement.txt ,
pip freeze >requirements.txt
结果就是把这个环境的所有包以及版本导出到requirements.txt文件中,
如果用conda 好像是下面这个命令,没用过
conda list -e > requirements.txt
pip 导入requrement.txt
pip install -r requirements.txt
pip 检查是不是所有依赖包都安装了和版本是不是兼容
$ pip check
No broken requirements found.
如果有问题结果如下
$ pip check
pyramid 1.5.2 requires WebOb, which is not installed.
$ pip check
pyramid 1.5.2 has requirement WebOb>=1.3.1, but you have WebOb 0.8.