It is easier in Python 3 than it was. I wrote this and it worked on the first try, although I have some experience with it. The dynamic module: » cat sub

It is easier in Python 3 than it was. I wrote this and it worked on the first try, although I have some experience with it. The dynamic module: » cat sub/test_module.py def hello(name): print(f'Hello {name}') The main script: » cat test_script.py from importlib import import_module full_module_path = 'sub.test_module' # no ".py" module = import_module(full_module_path) # optional, if you want to use across the project: import sys sys.modules[full_module_path] = module print(sys.modules[full_module_path]) # end optional # try it: module.hello('there!') To run it: » python3 test_script.py <module 'sub.test_module' from '/home/foo/sub/test_module.py'> Hello there! Stack overflow has its uses. But you shouldn't rely on it if things have changed, a lot of their advice is outdated and written by non-experts. The importlib module docs explain this concisely. https://docs.python.org/3/library/importlib.html#importlib.import_module https://docs.python.org/3/library/importlib.html#importlib.i... In general, I don't see the intrinsic complexity being reduced much more than this: from importlib import import_module module = import_module('sub.test_module')