问题
I have gone through many Python relative import questions but I can\'t understand the issue/get it to work.
My directory structure is:
Driver.py
A/
Account.py
__init__.py
B/
Test.py
__init__.py
Driver.py
from B import Test
Account.py
class Account:
def __init__(self):
self.money = 0
Test.py
from ..A import Account
When I try to run:
python Driver.py
I get the error
Traceback (most recent call last):
from B import Test
File \"B/Test.py\", line 1, in <module> from ..A import Account
ValueError: Attempted relative import beyond toplevel package
回答1:
This is happening because A and B are independent, unrelated, packages as far as Python is concerned.
Create a __init__.py in the same directory as Driver.py and everything should work as expected.
来源：https://stackoverflow.com/questions/14886143/how-to-import-a-python-module-from-a-sibling-folder