Macs management of the Python environment

Installation location instructions

• Mac comes with Python: /System/Library/Frameworks/Python.framework/Versions
• Official website to download the Python installed by pkg: /Library/Frameworks/Python.framework/Versions

Uninstall the specified version of Python

Remove frame

sudo rm -rf /Library/Frameworks/Python.framework/Versions/x.x

Delete app directory

sudo rm -rf /Applications/Python x.x

Remove connection to Python

ls -l /usr/local/bin | grep '../Library/Frameworks/Python.framework/Versions/x.x' | awk '{print $9}' | tr -d @ | xargs rm

Install pyevn on MAC to manage multiple versions of Python

There must be xcode on the computer, and if you don't have it, download it, which is very pitiful...

Download

brew install pyenv

View version

Response * indicates the version currently in use
system indicatesUsing the system's python version

View installable Python versions and install

Global version switch

# Be sure to add pyenv to the $PATH environment variable, execute the following commands, or add the following two sentences to~/.bash_profile to make it permanent.export PYENV_ROOT=~/.pyenvexport PATH=$PYENV_ROOT/shims:$PATH

Switch the python version under a folder

After setting pyenv local, it is found that setting pyenv globla does not work, execute pyenv local --unset to unset local