how to install python package? _ ModuleNotFoundError:
# 👇️ in a virtual environment or using Python 2 pip install Flask # 👇️ for python 3 (could also be pip3.10 depending on your version) pip3 install Flask # 👇️ if you get permissions error sudo pip3 install Flask pip install Flask --user # 👇️ if you don't have pip in your PATH environment variable python -m pip install Flask # 👇️ for python 3 (could also be pip3.10 depending on your version) python3 -m pip install Flask # 👇️ using py alias (Windows) py -m pip install Flask # 👇️ for Anaconda conda install -c anaconda flask # 👇️ for Jupyter Notebook !pip install Flask
安装特定版本 python
安装之后, 针对特定版本 安装特定版本的包
py -3.7 -m pip install numpy==1.21.5
以特定版本的python 运行代码:
py -3.7 -m test.py
参考:
ModuleNotFoundError: No module named 'flask' in Python | bobbyhadz