TypeError: api_view() takes from 0 to 1 positional arguments but 2 were given

[chiyabgs]

Project was working fine on macos. Now trying to host on linux.

Getting this error on makemigrations / createsuperuser / runserver .....

 @api_view(['GET'], ['POST'])

TypeError: api_view() takes from 0 to 1 positional arguments but 2 were given ( full trace below):

Other projects with similar function based views was working fine on linux.

Have no clue - no google / django community mentions.

Any help appreciated

Thanks

Exception in thread django-main-thread:

Traceback (most recent call last):

  File "/root/anaconda3/envs/py36latest/lib/python3.6/threading.py", line 916, in _bootstrap_inner

    self.run()

  File "/root/anaconda3/envs/py36latest/lib/python3.6/threading.py", line 864, in run

    self._target(*self._args, **self._kwargs)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/utils/autoreload.py", line 54, in wrapper

    fn(*args, **kwargs)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run

    self.check(display_num_errors=True)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/core/management/base.py", line 390, in check

    include_deployment_checks=include_deployment_checks,

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/core/management/base.py", line 377, in _run_checks

    return checks.run_checks(**kwargs)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/core/checks/registry.py", line 72, in run_checks

    new_errors = check(app_configs=app_configs)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/core/checks/urls.py", line 40, in check_url_namespaces_unique

    all_namespaces = _load_all_namespaces(resolver)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/core/checks/urls.py", line 57, in _load_all_namespaces

    url_patterns = getattr(resolver, 'url_patterns', [])

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/utils/functional.py", line 80, in __get__

    res = instance.__dict__[self.name] = self.func(instance)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/urls/resolvers.py", line 584, in url_patterns

    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/utils/functional.py", line 80, in __get__

    res = instance.__dict__[self.name] = self.func(instance)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/urls/resolvers.py", line 577, in urlconf_module

    return import_module(self.urlconf_name)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/importlib/__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 994, in _gcd_import

  File "<frozen importlib._bootstrap>", line 971, in _find_and_load

  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 678, in exec_module

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed

  File "/usr/..../drf_api/drf_api/urls.py", line 23, in <module>

    re_path(r'^api/', include(XYZApp.urls')),

  File "/root/anaconda3/envs/py36latest/lib/python3.6/site-packages/django/urls/conf.py", line 34, in include

    urlconf_module = import_module(urlconf_module)

  File "/root/anaconda3/envs/py36latest/lib/python3.6/importlib/__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 994, in _gcd_import

  File "<frozen importlib._bootstrap>", line 971, in _find_and_load

  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 678, in exec_module

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed

  File "/usr/.........drf_api/XYZApp/urls.py", line 4, in <module>

    from .import views

  File ""/usr/.........drf_api/XYZApp/views.py", line 161, in <module>

    @api_view(['GET'], ['POST'])

TypeError: api_view() takes from 0 to 1 positional arguments but 2 were given

[Jorge Gimeno]

It looks like the call to @api_view should be like this:

@api_view(['GET', 'POST'])

In other words, pass in a single list of the permitted HTTP methods. Docs here: https://www.django-rest-framework.org/api-guide/views/#api_view

-Jorge

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[chiyabgs]

Thanks Jorge , 

this is working fine on my local (mac) but failing on the linux m/c 

hence getting confused

but fixing it seems to have done the trick -Thanks again for the response. my first attempt posting on a group :-)

BGS

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