无法从模块导入Python numpy？

Question

My program is just:

import numpy as np
np.zeros(2)

It's in a folder with a __init__.py

If I run it as python a.py , I get:

Traceback (most recent call last):
  File "a.py", line 2, in <module>
    np.zeros(2)
AttributeError: 'module' object has no attribute 'zeros'

If I remove __init__.py , it works. The only line in __init__.py is an assignment to __all__ .

Why is this happening?

Answer 1

You most probably have a folder with the name ``numpy that is masking the library numpy` . You should not name your files/folders such that they mask the library modules.

My guess is this __init__.py was inside the folder named numpy , when you rmeoved it, Python stopped recognizing it as a package, and hence the correct numpy module was loaded.