How to make VSCode auto-reload external *.py modules?

Update:
The ultimate solution.
Just add this in you code.

%reload_ext autoreload
%autoreload 2

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I could not find the way make python interactive of vscode auto re-fresh when the .py file changes. but I try importlib.reload(), it works some way.

import funcs
import importlib
importlib.reload(funcs)
from funcs import *

funcs is my .py files, and code above should be run when the file changes.