How do I unload (reload) a Python module?

Question

I have a long-running Python server and would like to be able to upgrade a service without restarting the server. What\'s the best way do do this?

if foo.py          


        

Answer 1

Other option. See that Python default importlib.reload will just reimport the library passed as an argument. It won't reload the libraries that your lib import. If you changed a lot of files and have a somewhat complex package to import, you must do a deep reload.

If you have IPython or Jupyter installed, you can use a function to deep reload all libs:

from IPython.lib.deepreload import reload as dreload
dreload(foo)

If you don't have Jupyter, install it with this command in your shell:

pip3 install jupyter