ImportError : cannot import name generic

Question

我已经安装了 Django 1.10。我需要导入 loafing 但无法导入它。我正在尝试使用 Haystack 将我的 django 应用程序与 elasticsearch 连接起来，并希望构建索引。我想要 运行 的代码是

python manage.py rebuild_index

我得到的错误是：

base ---dir
/Manish/Projects/Spark/ad-tracking-django-env/ad-tracking-django
Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/Manish/Projects/Spark/ad-tracking-django-env/lib/python2.7/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "/Manish/Projects/Spark/ad-tracking-django-env/lib/python2.7/site-packages/django/core/management/__init__.py", line 341, in execute
    django.setup()
  File "/Manish/Projects/Spark/ad-tracking-django-env/lib/python2.7/site-packages/django/__init__.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Manish/Projects/Spark/ad-tracking-django-env/lib/python2.7/site-packages/django/apps/registry.py", line 108, in populate
    app_config.import_models(all_models)
  File "/Manish/Projects/Spark/ad-tracking-django-env/lib/python2.7/site-packages/django/apps/config.py", line 199, in import_models
    self.models_module = import_module(models_module_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Manish/Projects/Spark/ad-tracking-django-env/lib/python2.7/site-packages/catalog/models.py", line 4, in <module>
    from django.contrib.contenttypes import generic
ImportError: cannot import name generic

主要错误是：

ImportError: cannot import name generic

Answer 1

loading class 已在 django 1.9 中删除，这就是您收到错误的原因。相反，您可以使用 apps class.

>>> from django.apps import apps

编辑： generic class 也在 v1.9 中删除，功能已移至模型 class 和字段 class.

>>> from django.contrib.contenttypes.models import ContentType
>>> from django.contrib.contenttypes.fields import GenericForeignKey

可以找到更多信息here