从子目录中的文件 py 导入 class

Question

i have a python3 project with a subdirectory GTFSr with a file gtfsr that have a class GTFSR

---main.py  <--there is a class UTILITY
|----GTFSr
      |----gtfsrdb.py <--here i have GTFSrDB class that extend UTILITY.

when in main i type:

from GTFSr.gtfsrdb import GTFSrDB

I have this error:

`ImportError: cannot import name 'GTFSrDB' from 'GTFSr.gtfsrdb' (.....\GTFSr\gtfsrdb.py)`

UPDATE traceback:

    Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "xxx\GTFSr\gtfsrdb.py", line 33, in <module>
    from ReadProtocolBufferFiles import Utils
  File "xxx\ReadProtocolBufferFiles.py", line 9, in <module>
    from GTFSr.gtfsrdb import GTFSrDB
ImportError: cannot import name 'GTFSrDB' from 'GTFSr.gtfsrdb' (C:\xxxxxx\GTFSr\gtfsrdb.py)

Some Tips? thanks Regards

Answer 1

I think you need an __init__.py inside "GTFSr". Create an empty GTFSr/__init__.py and try your code please. Thanks.