lmuench

  project
  ├── main.py
  ├── package1
  │   ├── module1.py
  │   └── module2.py
  └── package2
      ├── __init__.py
      ├── module3.py
      ├── module4.py
      └── subpackage1
          └── module5.py

  from package1 import module1
  from package1.module2 import function1
  from package2.subpackage1.module5 import function2