26 | | instance.can_change = types.MethodType(can_change, instance, instance.__class__) |
27 | | |
28 | | |
29 | | dispatcher.connect(_add_attrs_and_methods, sender=User, signal=signals.post_init) |
30 | | }}} |
31 | | |
32 | | |
33 | | traceback: |
34 | | {{{ |
35 | | In [1]: from users.models import * |
36 | | |
37 | | In [2]: from fs.models import * |
38 | | |
39 | | In [3]: u = User.objects.all()[0] |
40 | | |
41 | | In [4]: len(Topic.objects.filter(author=u)) |
42 | | Out[4]: 2101 |
43 | | |
44 | | In [5]: Topic.objects.filter(author=u).count() |
45 | | --------------------------------------------------------------------------- |
46 | | TypeError Traceback (most recent call last) |
47 | | |
48 | | /home/grey/src/df/<ipython console> |
49 | | |
50 | | /usr/lib/python2.4/site-packages/django/db/models/query.py in count(self) |
51 | | 182 return len(self._result_cache) |
52 | | 183 |
53 | | --> 184 return self.query.get_count() |
54 | | 185 |
55 | | 186 def get(self, *args, **kwargs): |
56 | | |
57 | | /usr/lib/python2.4/site-packages/django/db/models/sql/query.py in get_count(self) |
58 | | 209 """ |
59 | | 210 from subqueries import CountQuery |
60 | | --> 211 obj = self.clone() |
61 | | 212 obj.clear_ordering(True) |
62 | | 213 obj.clear_limits() |
63 | | |
64 | | /usr/lib/python2.4/site-packages/django/db/models/sql/query.py in clone(self, klass, **kwargs) |
65 | | 167 obj.select = self.select[:] |
66 | | 168 obj.tables = self.tables[:] |
67 | | --> 169 obj.where = deepcopy(self.where) |
68 | | 170 obj.where_class = self.where_class |
69 | | 171 obj.group_by = self.group_by[:] |
70 | | |
71 | | /usr/lib/python2.4/copy.py in deepcopy(x, memo, _nil) |
72 | | 183 copier = _getspecial(cls, "__deepcopy__") |
73 | | 184 if copier: |
74 | | --> 185 y = copier(x, memo) |
75 | | 186 else: |
76 | | 187 reductor = dispatch_table.get(cls) |
77 | | |
78 | | /usr/lib/python2.4/site-packages/django/utils/tree.py in __deepcopy__(self, memodict) |
79 | | 43 obj = Node(connector=self.connector, negated=self.negated) |
80 | | 44 obj.__class__ = self.__class__ |
81 | | ---> 45 obj.children = deepcopy(self.children, memodict) |
82 | | 46 obj.subtree_parents = deepcopy(self.subtree_parents, memodict) |
83 | | 47 return obj |
84 | | |
85 | | /usr/lib/python2.4/copy.py in deepcopy(x, memo, _nil) |
86 | | 172 copier = _deepcopy_dispatch.get(cls) |
87 | | 173 if copier: |
88 | | --> 174 y = copier(x, memo) |
89 | | 175 else: |
90 | | 176 try: |
91 | | |
92 | | /usr/lib/python2.4/copy.py in _deepcopy_list(x, memo) |
93 | | 239 memo[id(x)] = y |
94 | | 240 for a in x: |
95 | | --> 241 y.append(deepcopy(a, memo)) |
96 | | 242 return y |
97 | | 243 d[types.ListType] = _deepcopy_list |
98 | | |
99 | | /usr/lib/python2.4/copy.py in deepcopy(x, memo, _nil) |
100 | | 172 copier = _deepcopy_dispatch.get(cls) |
101 | | 173 if copier: |
102 | | --> 174 y = copier(x, memo) |
103 | | 175 else: |
104 | | 176 try: |
105 | | |
106 | | /usr/lib/python2.4/copy.py in _deepcopy_tuple(x, memo) |
107 | | 246 y = [] |
108 | | 247 for a in x: |
109 | | --> 248 y.append(deepcopy(a, memo)) |
110 | | 249 d = id(x) |
111 | | 250 try: |
112 | | |
113 | | /usr/lib/python2.4/copy.py in deepcopy(x, memo, _nil) |
114 | | 202 raise Error( |
115 | | 203 "un(deep)copyable object of type %s" % cls) |
116 | | --> 204 y = _reconstruct(x, rv, 1, memo) |
117 | | 205 |
118 | | 206 memo[d] = y |
119 | | |
120 | | /usr/lib/python2.4/copy.py in _reconstruct(x, info, deep, memo) |
121 | | 349 if state: |
122 | | 350 if deep: |
123 | | --> 351 state = deepcopy(state, memo) |
124 | | 352 if hasattr(y, '__setstate__'): |
125 | | 353 y.__setstate__(state) |
126 | | |
127 | | /usr/lib/python2.4/copy.py in deepcopy(x, memo, _nil) |
128 | | 172 copier = _deepcopy_dispatch.get(cls) |
129 | | 173 if copier: |
130 | | --> 174 y = copier(x, memo) |
131 | | 175 else: |
132 | | 176 try: |
133 | | |
134 | | /usr/lib/python2.4/copy.py in _deepcopy_dict(x, memo) |
135 | | 266 memo[id(x)] = y |
136 | | 267 for key, value in x.iteritems(): |
137 | | --> 268 y[deepcopy(key, memo)] = deepcopy(value, memo) |
138 | | 269 return y |
139 | | 270 d[types.DictionaryType] = _deepcopy_dict |
140 | | |
141 | | /usr/lib/python2.4/copy.py in deepcopy(x, memo, _nil) |
142 | | 202 raise Error( |
143 | | 203 "un(deep)copyable object of type %s" % cls) |
144 | | --> 204 y = _reconstruct(x, rv, 1, memo) |
145 | | 205 |
146 | | 206 memo[d] = y |
147 | | |
148 | | /usr/lib/python2.4/copy.py in _reconstruct(x, info, deep, memo) |
149 | | 334 if deep: |
150 | | 335 args = deepcopy(args, memo) |
151 | | --> 336 y = callable(*args) |
152 | | 337 memo[id(x)] = y |
153 | | 338 if listiter is not None: |
154 | | |
155 | | /usr/lib/python2.4/copy_reg.py in __newobj__(cls, *args) |
156 | | 90 |
157 | | 91 def __newobj__(cls, *args): |
158 | | ---> 92 return cls.__new__(cls, *args) |
159 | | 93 |
160 | | 94 def _slotnames(cls): |
161 | | |
162 | | TypeError: instancemethod expected at least 2 arguments, got 0 |
163 | | }}} |
| 9 | In either case, though, the root problem is that for some reason QuerySet is trying to clone instancemethods and unbound functions, which isn't exactly supported -- dunno what a copy of a function would do anyway. The likely fix will involve finding out where and why functions/methods are being coppied, and stop doing that. |