PendingDeprecationWarning: The built in 'rest_framework.filters.FilterSet' is pending deprecation. You should use 'django_filters.rest_framework.FilterSet' instead

[dilyanpalauzov]

When I start django-rest-framework with 'python3 -Wall runserver' and print the backtrace in rest_framework/filters.py: if django_filters: class FilterSetMetaClass(DFFilterSetMetaClass), I get the text below. i don't call anything apart from 'runserver'. In case it has nothing to do with the code I have written, as I suppose, but the warning is emitted just because Django tries to call FilterSetMetaClass.new from utils/autoreload.py, please modify the code, so that no warnings are issued if no rest_framework.filters.FilterSet is called. I use Django 1.10.2 with DRF 3.5.2 .

opt/virtualenv/django/lib/python3.4/site-packages/rest_framework/filters.py:50: PendingDeprecationWarning: The built in 'rest_framework.filters.FilterSet' is pending deprecation. You should use 'django_filters.rest_framework.FilterSet' instead.
  PendingDeprecationWarning
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/utils/autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/core/management/commands/runserver.py", line 121, in inner_run
    self.check(display_num_errors=True)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/core/management/base.py", line 374, in check
    include_deployment_checks=include_deployment_checks,
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/core/management/base.py", line 361, in _run_checks
    return checks.run_checks(**kwargs)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/core/checks/registry.py", line 81, in run_checks
    new_errors = check(app_configs=app_configs)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/core/checks/urls.py", line 14, in check_url_config
    return check_resolver(resolver)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/core/checks/urls.py", line 24, in check_resolver
    for pattern in resolver.url_patterns:
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/urls/resolvers.py", line 313, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
File "/opt/virtualenv/django/lib/python3.4/site-packages/django/urls/resolvers.py", line 306, in urlconf_module
    return import_module(self.urlconf_name)
File "/opt/virtualenv/django/lib/python3.4/importlib/__init__.py", line 109, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)