D:\data\mypython\photosort 的目录

2019/09/08  15:51    <DIR>          .
2019/09/08  15:51    <DIR>          ..
2019/09/08  15:51                88 myfilesort.py
2019/09/08  15:38               220 myhome.py
2019/12/15  10:44               275 mymain_menu.py
2019/08/22  21:24                39 myphotosort.py
2019/09/08  15:51    <DIR>          siproject
2019/09/08  17:16    <DIR>          __pycache__
               4 个文件            622 字节
               4 个目录 253,973,061,632 可用字节

D:\data\mypython\photosort>python -m pdb myhome.py
> d:\data\mypython\photosort\myhome.py(1)<module>()
-> import os
(Pdb) s
> d:\data\mypython\photosort\myhome.py(2)<module>()
-> import re
(Pdb) s
> d:\data\mypython\photosort\myhome.py(3)<module>()
-> import sys
(Pdb) s
> d:\data\mypython\photosort\myhome.py(4)<module>()
-> sys.path.append('d:\data\mypath\photosort')
(Pdb) s
> d:\data\mypython\photosort\myhome.py(5)<module>()
-> import myfilesort
(Pdb) s
--Call--
> <frozen importlib._bootstrap>(978)_find_and_load()
(Pdb)

As a workaround insert the following hard-coded breakpoint before the import statement and run your script with python, i.e. 'python myhome.py' instead of 'python -m pdb myhome.p'.

from pdb import Pdb; Pdb(skip=['importlib*']).set_trace()