Because of the nature of Python, using importlib.reload() is going to lead to terrible bugs at some point. Use importlib.reload() only in the shell, for convenience.

If you want autoreload for dev (e.g: like django dev server), better restart the entire process.

There is a 7 years old project that can help you with that called watchdog:

    https://pythonhosted.org/watchdog/

It's a library that uses the fastest way available (e.g: inotify,kqueue...) to react to file changes (you can filter by types such as create, delete, write, etc) and triggers whatever code you want, passing you the metadata.

If you just want something very simple, you don't have to code, you can install watchdog with its optional watchmedo dependancy:

    pip install watchdog[watchmedo]

It will give you the watchmedo command, that lets you do something like this:

    watchmedo shell-command --patterns="*.py" --recursive \
    --command='python your_script_to_rerun.py' .