Python: Import directory from a file inside that directory?

I'm sorry if the title is confusing since English is not my first language. What I have trouble is running a python script that calls import of its own directory. The folder structure is like this:

MyProject 
    |--Utils
          |-- util
          |     |-- __init__.py
          |     |-- run.py
          |-- __init__.py
          |-- test.py

And the code of test.py is as following

import Utils.util

if __name__ == '__main__':
   # Do something

When running test.py, I get this error

ModuleNotFoundError: No module named 'Utils'

Is there anyway to call import that's suitable for this folder structure? If it's possible, someone can please help me naming this problem for better searches?

I have tried create a new script in the root folder which runs normally. However, what if I want to store testing code like test.py in modular folders, the import command is not running