Python常用命令

1. 创建虚拟环境  

python -m venv my_project_env

pycharm中默认my_project_env名称是“.venv”

2.激活/进入虚拟环境

my_project_env\Scripts\activate

3.退出虚拟环境

deactivate

4.包安装

pip install package_name

5.从文件批量安装 (最常用)

pip install -r requirements.txt

6.卸载包

pip uninstall package_name

7. 查看已安装的包

pip list

8. 导出当前环境的依赖清单

pip freeze > requirements.txt

9.启动Jupyter Notebook/Lab

Lab (推荐)

jupyter lab my_jupyter_file.ipynb

Notebook:

jupyter notebook my_jupyter_file.ipynb

需提前安装jupyter库