Unable to upgrade python 3.8 from 3.7.7 in macOS

Question

I am getting error when I try

brew install python3

Answer 1

I think the warning said it all. brew link python3 will give you python 3.7.7 .

If you like to use python 3.8 , you can use brew install python@3.8 instead.

Answer 2

The best approach to manage Python versions is to follow Moshe Zadka's recommendations:

1. Install Python environment manager pyenv :

$ brew install pyenv

2. Install version version as you require using pyenv install python-version, eg:

$ pyenv install 3.8.3

3. Set your global default version: using pyenv global python-version, eg:

$ pyenv global 3.8.3

4. Add this version to your configuration file ( .zshrc or .bash_profile which ever you use) to work correctly, eg:

$ echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n  eval "$(pyenv init -)"\nfi' >> ~/.zshrc

Your configuration file will then be updated with the following:

if command -v pyenv 1>/dev/null 2>&1; then
  eval "$(pyenv init -)"
fi

Then you're good to go.

-enjoy Python!