Adding a Python version to your path
Let's say your system comes installed with the system Python version, but you want to upgrade your version. Sometimes your system Python version doesn't allow things like sqlite extensions, so you may want to switch to homebrew with brew install python.
First check what shell you are using:
echo $SHELL // or
echo $0
/bin/bash -> you are using bash
/bin/zsh -> you are using zsh
Typically, you'll be using zsh.
You need to update the zsh config file at ~/.zshrc (you might need to create it).
export PATH="/opt/homebrew/bin:$PATH"
To reload the file:
source ~/.zshrc
which python3
Should show:
/opt/homebrew/bin/python3