[Python] Loading multi-level self-made modules

Premise

A memo on how to write __init__.py when the structure is as follows.

root/ 　├ __init__.py 　├ dir_a/ 　│　　├ __init__.py │ └ test_a.py (func_a is defined) 　└ dir_b/ 　　　　├ __init__.py └ test_b.py (func_b is defined)

After doing ʻimport root, I want to be able to call it with root.func_a`. Since there was such a thing, I will realize this.

init directly under root

For root / __ init__.py

root/__init__.py

import os
import sys
sys.path.append(os.path.dirname(os.path.abspath(__file__)))

from root.dir_a import *
from root.dir_b import *

dir_a init

For root / dir_a / __ init__.py

root/dir_a/__init__.py

from dir_a.test_a import *

dir_b init

Make root / dir_b / __ init__.py similar to root /dir_a/__init__.py

root/dir_b/__init__.py

from dir_b.test_b import *

Summary

All you are doing is calling in sequence. The pass is troublesome.