| """ | |
| _PyType_Lookup() returns a borrowed reference. | |
| This attacks PyObject_GenericSetAttr(). | |
| NB. on my machine this crashes in 2.5 debug but not release. | |
| """ | |
| class A(object): | |
| pass | |
| class B(object): | |
| def __del__(self): | |
| print "hi" | |
| del C.d | |
| class D(object): | |
| def __set__(self, obj, value): | |
| self.hello = 42 | |
| class C(object): | |
| d = D() | |
| def g(): | |
| pass | |
| c = C() | |
| a = A() | |
| a.cycle = a | |
| a.other = B() | |
| lst = [None] * 1000000 | |
| i = 0 | |
| del a | |
| while 1: | |
| c.d = 42 # segfaults in PyMethod_New(im_func=D.__set__, im_self=d) | |
| lst[i] = c.g # consume the free list of instancemethod objects | |
| i += 1 |