PyEnv is a tool that let's us switch between multiple versions of Python easily.
Note: PyEnv does not support Windows.
To install PyEnv, run:
curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash
Taken from here https://github.com/pyenv/pyenv
Now let's install 3.7
pyenv install 3.7.0
We can use PyEnv locally or globally.
Globally means we change our entire Python version on our computer. Locally means that for a specific project or directory we use a different Python version.
In our my-new-project directory, run pyenv local 3.7.0.
And just like that we can use different Python versions for different things.
If we wanted to use 3.7.0 globally instead of 3.8:
pyenv global 3.7.0