使用列表（）在我的DRF视图中引发AttributeE

Question

希望使用list（）内置函数将我的字典转换为django rest框架视图中的列表，但是如果我尝试.values()或.items()，它会引发AttributeError: 'dict_keys' object has no attribute 'META'.相同的结果。无论我是将字典放在def list方法中，还是覆盖__init__并将其放在那里，错误都会持续存在。django之外的相同代码似乎可以正常工作，那么这里发生了什么？这与DRF方法名为'list'有关吗？ 以下是引发错误的简化版本： 你知道吗

class SomeViewSet(viewsets.ViewSet):
    some_dict = {
        'key1': 'value1',
        'key2': 'value2'
    }

    def list(self, request, format=None):
        print(list(self.some_dict.keys()))
        return Response(some_response())

这很好：

class SomeViewSet(viewsets.ViewSet):
    some_dict = {
        'key1': 'value1',
        'key2': 'value2'
    }

    def list(self, request, format=None):
        print(self.some_dict.keys())
        return Response(some_response())

使用[]而不是list（）是可行的，但它只是将视图对象放入列表中，而不是将其转换为列表，因此这是不好的。 回溯：

Traceback (most recent call last):
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\utils\autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\management\commands\runserver.py", line 117, in inner_run
    self.check(display_num_errors=True)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\management\base.py", line 379, in check
    include_deployment_checks=include_deployment_checks,
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\management\base.py", line 366, in _run_checks
    return checks.run_checks(**kwargs)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\checks\registry.py", line 71, in run_checks
    new_errors = check(app_configs=app_configs)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\checks\urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\checks\urls.py", line 23, in check_resolver
    return check_method()
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\urls\resolvers.py", line 396, in check
    for pattern in self.url_patterns:
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\utils\functional.py", line 37, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\urls\resolvers.py", line 533, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\utils\functional.py", line 37, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\urls\resolvers.py", line 526, in urlconf_module
    return import_module(self.urlconf_name)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 978, in _gcd_import
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load
  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
  File "E:\Github\MapPoolApp\MapPoolApp\urls.py", line 20, in <module>
    path('', include('mappool.urls')),
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\urls\conf.py", line 34, in include
    urlconf_module = import_module(urlconf_module)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 978, in _gcd_import
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load
  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
  File "E:\Github\MapPoolApp\mappool\urls.py", line 2, in <module>
    from . import views
  File "E:\Github\MapPoolApp\mappool\views.py", line 188, in <module>
    class MapPoolViewSet(viewsets.ViewSet):
  File "E:\Github\MapPoolApp\mappool\views.py", line 205, in MapPoolViewSet
    place = list(pool_args.items())
  File "E:\Github\MapPoolApp\mappool\views.py", line 49, in list
    return render(request, 'mappool/list.html', context)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\shortcuts.py", line 36, in render
    content = loader.render_to_string(template_name, context, request, using=using)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\template\loader.py", line 62, in render_to_string
    return template.render(context, request)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\template\backends\django.py", line 61, in render
    return self.template.render(context)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\template\base.py", line 169, in render
    with context.bind_template(self):
  File "C:\Users\FluffyAdmin\AppData\Local\Programs\Python\Python36-32\Lib\contextlib.py", line 82, in __enter__
    return next(self.gen)
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\template\context.py", line 246, in bind_template
    updates.update(processor(self.request))
  File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\template\context_processors.py", line 40, in debug
    if settings.DEBUG and request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS:
AttributeError: 'dict_items' object has no attribute 'META'

是DRF的魔法还是我错过了一些明显的东西