Pyenv https://github.com/pyenv/pyenv Tutorials https://amaral.northwestern.edu/resources/guides/pyenv-tutorial Troubleshooting zlib issue on Mojave https://github.com/pyenv/pyenv/issues/1219#issuecomment-429331397 global not working? https://github.com/pyenv/pyenv/issues/821#issuecomment-287721994