ModuleNotFoundError

[snippsat]

Well, that should be from model import util and from model.hr import hr I think.

Yes that should be right.

Kjaglewicz is do it like this easier to see the structure.

secure-erp\
  controller\
    |-- hr_controller.py
    |-- main_controller.py
  model\
    |-- util.py
    hr\
      |-- hr.py

A quick test.
util.py

def util_func():
    print('util func')

hr.py

def hr_func():
    print('hr stuff')

(secure-erp) G:\div_code\secure-erp
λ ptpython
>>> from model import util
>>>
>>> util.util_func()
util func
>>>
>>> from model.hr import hr
>>>
>>> hr.hr_func()
hr stuff
>>>

I usually make virtual envirmont then there is no OS Path problems.
Also install ptpython then get autocomplete when try out imports,then can see earlier what it find or not.