unversioned-python − info on how to set up the ‘python‘ command.
unversioned-python
unversioned-python The "unversioned" ‘python‘ command (/usr/bin/python) is missing by default. We recommend using ‘python3‘ or ‘python2‘ instead. If using the explicit versioned command is inconvenient, you can use ‘alternatives‘ to configure ‘python‘ to launch either Python 3 or Python 2.
Note: The ‘python3‘ or ‘python2‘ package needs to be installed before its functionality is selected.
alternatives --config python
Interactively select what the ‘python‘ command runs.
alternatives --set python /usr/bin/python3
Configure the ‘python‘ command to run Python 3
Note: this is non-standard behavior according to [PEP 394].
alternatives --set python /usr/bin/python2
Configure the ‘python‘ command to run Python 2
Note: please review the support lifecycle of python2 before relying on it
alternatives --auto python
Undo configuration changes and revert to the default (missing ‘python‘ command)
[PEP 394]: https://www.python.org/dev/peps/pep-0394/