Drf-yasg: SWAGGER_SETTINGS['LOGIN_URL'] does not work with `reverse_lazy`

[linevych]

Versions

• drf-yasg==1.10.1
• djangorestframework==3.8.2
• Django==2.0.6
• Python 3.6.5

Settings

SWAGGER_SETTINGS = {
    'DEFAULT_INFO': 'project_name.swagger_urls.api_info,
}

LOGIN_URL = reverse_lazy('custom_view_name')

Traceback

Traceback (most recent call last):
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner
    response = get_response(request)
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/django/core/handlers/base.py", line 158, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/django/core/handlers/base.py", line 156, in _get_response
    response = response.render()
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/django/template/response.py", line 106, in render
    self.content = self.rendered_content
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/rest_framework/response.py", line 72, in rendered_content
    ret = renderer.render(self.data, accepted_media_type, context)
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/drf_yasg/renderers.py", line 71, in render
    self.set_context(renderer_context, swagger)
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/drf_yasg/renderers.py", line 121, in set_context
    super(SwaggerUIRenderer, self).set_context(renderer_context, swagger)
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/drf_yasg/renderers.py", line 83, in set_context
    renderer_context.update(self.get_auth_urls())
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/drf_yasg/renderers.py", line 103, in get_auth_urls
    'LOGIN_URL': self.resolve_url(swagger_settings.LOGIN_URL),
  File "/home/anton/.virtualenvs/slated/lib/python3.6/site-packages/drf_yasg/renderers.py", line 92, in resolve_url
    to, args, kwargs = to
ValueError: too many values to unpack (expected 3)

Debugging info

[axnsan12]

Whoops.

[linevych]

Possible fix:

    def resolve_url(self, to):
        if to is None:
            return None

        from django.utils.functional import Promise
        to = str(to) if isinstance(to, Promise) else to

        args, kwargs = None, None

        if not isinstance(to, six.string_types):
            if len(to) > 2:
                to, args, kwargs = to
            elif len(to) == 2:
                to, kwargs = to

        args = args or ()
        kwargs = kwargs or {}

        return resolve_url(to, *args, **kwargs)