Can the code realize batch processing of pictures in each subfolder and generate collage in pycharm? Why do I give an error?

[shubote]

At the beginning, I was prompted to make a mistake. I found no answer to this mistake in many places. I hope the author can help me.

from photocollage import photocollage
from PIL import Image

The following error occurred：
Traceback (most recent call last):
File "C:\Users\schubert\PycharmProjects\pythonProject1\33.py", line 1, in
from photocollage import photocollage
ImportError: cannot import name 'photocollage' from 'photocollage' (C:\Users\schubert\PycharmProjects\pythonProject1\venv\lib\site-packages\photocollage_init_.py)

I don't know what went wrong.

[shubote]

run python3 -m unittest tests/test_*.py

The returned information is normal.
Testing started at 10:56 ...
Launching unittests with arguments python -m unittest 临时.TestCollage.test_bottom_hole_B1 in C:\Users\schubert\PycharmProjects\pythonProject1

Ran 1 test in 0.003s

OK