[philwelch]

Sometimes scripts will want to invoke Python as ‘python’ and it’s easier to use pyenv to set $PATH overrides.

[japhyr]

Thank you, that’s the first concrete reason I’ve heard. It also explains why I haven’t run into issues yet using my own aliases.

[heavenlyblue]

Why do you need pyenv to set PATH?

[philwelch]

Maybe you don’t, but it’s a way of doing it.

Specifically, pyenv will dynamically and programmatically link the $PATH for the Python executables (python, pip, etc.) to the desired version as defined either by an environment variable or by the contents of a .python-version file in CWD or an ancestor thereof. The .python-version file can be checked into version control.