pyenv #

Manage multiple Python versions.

dotfile #

Make sure the following is present in your .(bash|zsh)rc file:

eval "$(pyenv init -)"

Install versions #

pyenv install <version>

Optionally, add :latest after the version to grab the latest.

List versions #

pyenv versions

Switching versions #

To set a version globally:

pyenv global <version>

To set a version locally within a directory (this creates a dotfile):

pyenv local <version>

Using pyenv with venv #

To create a virtual environment using venv using a particular version of Python installed through pyenv, first navigate to the directory, then select the version locally.

Troubleshooting #

Pre-Apple Silicon #

If the build fails because the version of Python is too old and pre-dates Apple Silicon (assuming this is on a mac), run:

arch -x86_64 pyenv install <version>