Rebuilding and reinstalling python-pip with this change only, does not seem to prevent the error pip: cannot execute: required file not found, and the shebang remains ...

To uninstall the Python package using PIP, you can run pip uninstall package_name, but it depends on whether you want to remove single package or all packages.

Similarly, the python command references a specific python file (which -a python will tell you which one). For one reason or another, these two commands can become out of sync, so your "default" pip ...