models.py with many Models may be more difficult to maintain than shorter
models.py with fewer Models.
There is a limit to how many items a developer can consider when forming a mental model of source code.
It may be time to split an application if models.py is very long.
Django Doctor will run this check by default. No configuration is needed but the check can be turned on/off using check code
tall-models in your pyproject.toml file.