运行此python代码时“没有名为...的模块”

Question

I have no idea what causes this error, this is as simplest as I could get, yet SO gives me hint that my question does not meet their quality standards so I must post this longer intro.

#===
# my_script.py
import myModule

#===
# myModule\__init__.py
import sys
from my_def import *

class MyModule:
  def __init__(self):
    pass

#===
# myModule\my_def.py
def my_def():
  pass

Traceback (most recent call last):
  File "my_script.py", line 1, in <module>
    import myModule
  File "D:\test\myModule\__init__.py", line 2, in <module>
    from my_def import *
ImportError: No module named 'my_def'

Answer 1

你可以试试这个：

sys.path.append("path_of_script")

Answer 2

In __init__.py , add a . before my_def . The . means that it should be looking for the file in the same folder as the script itself, rather than relative to my_script.py .

from .my_def import *