makemigration导致错误"TypeError:预期的str，字节或os.PathLike对象，而不是NoneType". [英] makemigration causing error "TypeError: expected str, bytes or os.PathLike object, not NoneType"

问题描述

在docker容器中运行makemigration命令导致此错误，有人可以帮我找出问题所在吗?

Running makemigration command inside docker container caused this error, can anyone please help me figure out what the problem is ?

python3.7 manage.py makemigrations

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/reportlab/lib/utils.py", line 667, in open_for_read
    return open_for_read_by_name(name,mode)
  File "/usr/local/lib/python3.7/site-packages/reportlab/lib/utils.py", line 611, in open_for_read_by_name
    return open(name,mode)
TypeError: expected str, bytes or os.PathLike object, not NoneType

推荐答案

您正在使用旧版本的 import_module的行为在python 3.6(或3.7，我不记得了)中已更改.

import_module behaviour has changed in python 3.6 (or 3.7, I don't remember).

要么改变您的django版本，要么使用python<3.7

Either bump your version of django or use python < 3.7

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