Summary

prek can currently only be run via the prek command and does not work with python -m prek. Please add support for running prek as a Python module.

Motivation

• Consistency: Many Python CLI tools (e.g. black, ruff, uv) support python -m <package>.
• Virtual environments: python -m prek makes it clear which Python interpreter (and thus which venv) is used.
• Scripts and CI: Using python -m prek makes the execution environment explicit.
• IDE and tool integration: Some tools only support the python -m form.

(I am willing to submit a PR)