Question

我是python中的新手。我使用了本教程http://www.django-rest-framework.org/tutorial/quickstart/，但是 RegexURLPattern 存在问题。完整堆栈问题：

 Unhandled exception in thread started by <function check_errors.  
 <locals>.wrapper at 0x103c8cf28>
 Traceback (most recent call last):
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/utils/autoreload.py", line 226, in wrapper
 fn(*args, **kwargs)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/core/management/commands/runserver.py", line 116, in inner_run
 self.check(display_num_errors=True)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/core/management/base.py", line 366, in check
 include_deployment_checks=include_deployment_checks,
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/core/checks/registry.py", line 75, in run_checks
 new_errors = check(app_configs=app_configs)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/core/checks/urls.py", line 10, in check_url_config
 return check_resolver(resolver)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/core/checks/urls.py", line 19, in check_resolver
 for pattern in resolver.url_patterns:
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/utils/functional.py", line 35, in __get__
 res = instance.__dict__[self.name] = self.func(instance)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/core/urlresolvers.py", line 379, in url_patterns
 patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/utils/functional.py", line 35, in __get__
 res = instance.__dict__[self.name] = self.func(instance)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/Django-1.10.dev20151224130822-py3.5.egg/django/core/urlresolvers.py", line 372, in urlconf_module
 return import_module(self.urlconf_name)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/importlib/__init__.py", line 126, in import_module
 return _bootstrap._gcd_import(name[level:], package, level)
 File "<frozen importlib._bootstrap>", line 986, in _gcd_import
 File "<frozen importlib._bootstrap>", line 969, in _find_and_load
 File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
 File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
 File "<frozen importlib._bootstrap_external>", line 662, in exec_module
 File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
 File "/Users/igor/tutorial/tutorial/tutorial/urls.py", line 28, in <module>
 url(r'^', include(router.urls)),
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/rest_framework/routers.py", line 79, in urls
 self._urls = self.get_urls()
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/rest_framework/routers.py", line 321, in get_urls
 urls = format_suffix_patterns(urls)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/rest_framework/urlpatterns.py", line 64, in format_suffix_patterns
 return apply_suffix_patterns(urlpatterns, suffix_pattern, suffix_required)
 File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/rest_framework/urlpatterns.py", line 27, in apply_suffix_patterns
 view = urlpattern._callback or urlpattern._callback_str
 AttributeError: 'RegexURLPattern' object has no attribute '_callback'

我的urls.py内容：

from django.conf.urls import url, include
from rest_framework import routers
from quickstart import views

router = routers.DefaultRouter()
router.register(r'users', views.UserViewSet)
router.register(r'groups', views.GroupViewSet)

urlpatterns = [
       url(r'^', include(router.urls)),
       url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework'))
]

我做错了什么？请帮忙......

Answer 1

您正在使用Django的开发版本。 DRF尚未兼容。你应该安装Django 1.8.x或1.9.x.

Answer 2

我在Django 1.10和1.11上遇到了同样的问题。解决方案：将djangorestframework更新到最新版本

pip install -U djangorestframework

Answer 3

那个疯狂的错误。我浪费了两个星期的周末来认识到必须安装特定的版本：

Django 1.11（我的上一个版本＆＃39; 1.11.3）
djangorestframework 3.7
python 3.6.5

祝你好运！

Answer 4

项目布局看起来与quickstart不同。

from quickstart import views

应该是：

from tutorial.quickstart import views

Answer 5

就我而言，似乎没有安装DRF。我运行 pip install djangorestframework ，我的'runserver'命令运行正常。

AttributeError：'RegexURLPattern'对象没有属性'_callback'

5 个答案: