How do i watch python source code files and restart when i save?

Question

When I save a python source code file, I want to re-run the script. Is there a command that works like this (sort of like nodemon for node)?

Answer 1

The most similar way to nodemon I found is by using the watchdog package:

pip install watchdog

This comes with a utility called watchmedo:

watchmedo shell-command \
 --patterns="*.py" \
 --command='python "${watch_src_path}"' \
 .

Now just work on your .py and it will be executed every time you save the file.