Django 官方教程第 1 部分：运行时错误：cmp 中超出最大递归深度

根据 django 教程，我创建了项目并执行了manage.py runserver，如教程中所述，并且我收到错误“RuntimeError：cmp 中超出了最大递归深度”

有什么办法可以纠正这个问题吗？

我得到这个错误：

Validating models...

Unhandled exception in thread started by >
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/django/core/management/commands/runserver.py", line 92, in inner_run
    self.validate(display_num_errors=True)
  File "/Library/Python/2.7/site-packages/django/core/management/base.py", line 280, in validate
    num_errors = get_validation_errors(s, app)
  File "/Library/Python/2.7/site-packages/django/core/management/validation.py", line 35, in get_validation_errors
    for (app_name, error) in get_app_errors().items():
  File "/Library/Python/2.7/site-packages/django/db/models/loading.py", line 166, in get_app_errors
    self._populate()
  File "/Library/Python/2.7/site-packages/django/db/models/loading.py", line 72, in _populate
    self.load_app(app_name, True)
  File "/Library/Python/2.7/site-packages/django/db/models/loading.py", line 96, in load_app
    models = import_module('.models', app_name)
  File "/Library/Python/2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/Library/Python/2.7/site-packages/django/contrib/auth/models.py", line 370, in 
    class AbstractUser(AbstractBaseUser, PermissionsMixin):
  File "/Library/Python/2.7/site-packages/django/db/models/base.py", line 213, in __new__
    new_class.add_to_class(field.name, copy.deepcopy(field))
  File "/Library/Python/2.7/site-packages/django/db/models/base.py", line 265, in add_to_class
    value.contribute_to_class(cls, name)
  File "/Library/Python/2.7/site-packages/django/db/models/fields/__init__.py", line 257, in contribute_to_class
    cls._meta.add_field(self)
  File "/Library/Python/2.7/site-packages/django/db/models/options.py", line 179, in add_field
    self.local_fields.insert(bisect(self.local_fields, field), field)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/functools.py", line 56, in 
    '__lt__': [('__gt__', lambda self, other: other 
    '__lt__': [('__gt__', lambda self, other: other 
    '__lt__': [('__gt__', lambda self, other: other 
    '__lt__': [('__gt__', lambda self, other: other .........................
RuntimeError: maximum recursion depth exceeded in cmp
  

设置.py

我知道这是一个老问题，但我刚刚遇到了同样的错误。将 Python 更新到 v 2.7.5 对我有用。

当我切换帐户但尝试启动同一个 Django 项目时出现错误，并且我只更新了第一个帐户上的 Python 版本。