django rest framework " TypeError: 'type' object is not iterable " error

Question

I do not know what configuration to modify.

My git repository URL is: 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

You might need to initiate this variable as a tuple instead of a string. — ikkuh
– ikkuh, Commented Nov 27, 2018 at 8:35
Oh...!!!! Thank you very much!! Thanks to that, I can solve the problem well. — Nouveau
– Nouveau, Commented Nov 28, 2018 at 1:15

M.javid · Accepted Answer · 2020-09-04 15:48:12Z

84

On the settings.py file append comma at the end of '...JSONWebTokenAuthentication' line as below:

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

Attention: without comma this is not a tuple

edited Sep 4, 2020 at 15:48

answered Nov 27, 2018 at 9:02

M.javid

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1 Comment

Mohd Farid Over a year ago

100 likes for telling: "Attention: without comma this is not a tuple"

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