Django SimplyLazyObject实例的模型实例在哪里？

Question

我想查看与正在获取的SimplyLazyObject相对应的模型实例，以便我可以打印它__dict__。我如何找到模型实例？

e.g., 
ipdb> user 
<django.utils.functional.SimpleLazyObject object at 0x10c84d150> 

Answer 1

SimplyLazyObject实例的_wrapped属性包含模型实例。

例如，

ipdb> user 
<django.utils.functional.SimpleLazyObject object at 0x10c84d150> 

ipdb> pp(user.__dict__) 
{'_setupfunc': <function <lambda> at 0x10c846938>, 
'_wrapped': <User: foo@bednark.com>} 

ipdb> user._wrapped 
<User: foo@bednark.com> 

ipdb> type(user._wrapped) 
<class 'django.contrib.auth.models.User'> 

ipdb> pp(user._wrapped.__dict__) 
{'_profile_cache': <UserProfile: foo@bednark.com>, 
'_state': <django.db.models.base.ModelState object at 0x10c869290>, 
'_username': u'4qInglEqb3HzIFMEuo1H4WkR-HXbWI', 
'date_joined': datetime.datetime(2013, 7, 29, 0, 53, 5, 545109), 
'email': u'foo@bednark.com', 
'first_name': u'Rob', 
'id': 24, 
'is_active': True, 
'is_staff': False, 
'is_superuser': False, 
'last_login': datetime.datetime(2013, 7, 29, 0, 53, 23, 739774), 
'last_name': u'Bednark', 
'password': u'pbkdf2_sha256$10000$a1pAQhQuJ2Ng$79CDBtDYWsBxnxShXUSPOTNUVj63cDpaocay6BNzfRs=', 
'username': u'foo@bednark.com'}