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python - django rest 框架“TypeError: 'type' object is not iterable”错误

问题描述

我不知道要修改什么配置。

我的 git 存储库 URL 是：https ://github.com/Nomadcoders-Study/Nomadgram

Internal Server Error: /images/all/
Traceback (most recent call last):
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
response = get_response(request)
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
return view_func(*args, **kwargs)
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
return self.dispatch(request, *args, **kwargs)
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/rest_framework/views.py", line 478, in dispatch
request = self.initialize_request(request, *args, **kwargs)
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/rest_framework/views.py", line 380, in initialize_request
authenticators=self.get_authenticators(),
  File "/usr/local/var/pyenv/versions/3.6.1/envs/nomadgram/lib/python3.6/site-packages/rest_framework/views.py", line 274, in get_authenticators
  return [auth() for auth in self.authentication_classes]
TypeError: 'type' object is not iterable

标签： pythondjangodjango-rest-framework

解决方案

在settings.py文件中，在行尾添加逗号，'...JSONWebTokenAuthentication'如下所示：

REST_FRAMEWORK = {
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
    ),
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_jwt.authentication.JSONWebTokenAuthentication',
    ),
}

注意：没有逗号这不是一个元组

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