yeah it's been awhile since I've set up a python-ready environment, and trying to install this reminded me of the challenge of just getting to the expected starting point.

  $ pip install git-delete-merged-branches
  zsh: command not found: pip
  $ brew install pip
  Error: No available formula with the name "pip"
  pip is part of the python formula:
    brew install python
  $ brew install python
  ...
  OK
  $ pip install git-delete-merged-branches
  zsh: command not found: pip
  
  (look up how to install pip)
  $ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
  $ python get-pip.py
  WARNING: The scripts pip, pip2 and pip2.7 are installed in 
  '/Users/{me}/Library/Python/2.7/bin' which is not on PATH.
    Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Successfully installed pip-20.2.2
  $ pip install git-delete-merged-branches
  zsh: command not found: pip
  (walk away)

I know there are solutions to all this, and it's mainly that I don't already have my $PATH set up the way that pip expects, etc, but really??