有一条我无法理解的错误消息，因为我看不到我的代码在哪里调用它。当使用带有 dev_appserver 的 Google 应用引擎的用户对象时，它会出现。你能告诉我这是什么意思吗？
ERROR 2011-07-15 15:01:07,664 __init__.py:463] 'User' object has no attribute '_User__email'
Traceback (most recent call last):
File "/media/Lexar/projects/google/appengine/ext/webapp/__init__.py", line 700, in __call__
handler.get(*groups)
File "/media/Lexar/projects/myproject/i18n.py", line 313, in get
self.response.out.write(template.render(path, template_values))
File "/media/Lexar/projects/google/appengine/ext/webapp/template.py", line 73, in render
return t.render(Context(template_dict))
File "/media/Lexar/projects/google/appengine/ext/webapp/template.py", line 115, in wrap_render
return orig_render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 173, in render
return self._render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 167, in _render
return self.nodelist.render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 796, in render
bits.append(self.render_node(node, context))
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 809, in render_node
return node.render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/loader_tags.py", line 139, in render
return self.template.render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 173, in render
return self._render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 167, in _render
return self.nodelist.render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 796, in render
bits.append(self.render_node(node, context))
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 809, in render_node
return node.render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/defaulttags.py", line 258, in render
return self.nodelist_true.render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 796, in render
bits.append(self.render_node(node, context))
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 809, in render_node
return node.render(context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 849, in render
return _render_value_in_context(output, context)
File "/media/Lexar/projects/lib/django_1_2/django/template/__init__.py", line 829, in _render_value_in_context
value = force_unicode(value)
File "/media/Lexar/projects/lib/django_1_2/django/utils/encoding.py", line 66, in force_unicode
s = unicode(s)
File "/media/Lexar/projects/google/appengine/api/users.py", line 188, in __unicode__
return unicode(self.nickname())
File "/media/Lexar/projects/google/appengine/api/users.py", line 152, in nickname
if (self.__email and self.__auth_domain and
AttributeError: 'User' object has no attribute '_User__email'
编辑:当我删除这段代码时错误消失了:
'user_url': users.create_logout_url(self.request.uri) if users.get_current_user() else 'login','user' : users.get_current_user(),
所以假设我在使用 User 对象时犯了一些错误
更新:这似乎与我应用的猴子补丁有关。删除这部分会消除错误，所以我想知道我是否还需要这个补丁。据报道
def _user_init(self, email=None, _auth_domain=None,
_user_id=None, federated_identity=None, federated_provider=None,
_strict_mode=True):
if not _auth_domain:
_auth_domain = os.environ.get('AUTH_DOMAIN')
assert _auth_domain
if email is None and federated_identity is None:
email = os.environ.get('USER_EMAIL', email)
_user_id = os.environ.get('USER_ID', _user_id)
federated_identity = os.environ.get('FEDERATED_IDENTITY',
federated_identity)
federated_provider = os.environ.get('FEDERATED_PROVIDER',
federated_provider)
if not email and not federated_identity and _strict_mode:
raise UserNotFoundError
self.__email = email
self.__federated_identity = federated_identity
self.__federated_provider = federated_provider
self.__auth_domain = _auth_domain
self.__user_id = _user_id or None
users.User.__init__ = _user_init
monkeypatch 来自的相关线程 How do I apply a monkeypatch to GAE?
请您参考如下方法:
我猜你的错误是在某些模块的导入时:
ERROR 2011-07-15 15:01:07,664 __init__.py:463] 'User' object has no attribute '_User__email'
__init__.py 是将目录定义为模块包的文件。
您可以查找带有 User 对象的 #463 行，或者有选择地删除导入以了解哪个包有问题。
我想为了修复它，您需要确保 User 对象确实有一个 _User__email(这是 __email 的 mangled name ) 属性，但不知道你是如何调用产生错误的，这很难说......
