[Cython] python-dbg: ../Modules/gcmodule.c:366: visit_decref: Assertion `gc->gc.gc_refs != 0' failed

[Yaroslav Halchenko]

pardon the initial absence of subject

On Mon, 03 Dec 2012, Yaroslav Halchenko wrote:

> reproduced with cython 0.17.2 (+ few post release fixes), originally
> detected/reported [1] with  0.17.1 on Debian systems using debug build of
> Python:

> $> python-dbg -c 'import pyximport as pi; pi.install(); import weakfail; s=weakfail.foo(42)'                                                        
> python-dbg: ../Modules/gcmodule.c:366: visit_decref: Assertion `gc->gc.gc_refs != 0' failed.
> [1]    12648 abort      python-dbg -c 

> $> cat weakfail.pyx 
> import weakref
> foo_dict = weakref.WeakValueDictionary()

> cdef class Foo:
>     cdef object __weakref__

> def foo(key):
>     obj = Foo()
>     foo_dict[key] = obj
>     return obj


> it seems to work fine with cython 0.15.2 .  Any ideas?  requires separate/new bug report?

> [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692313
-- 
Yaroslav O. Halchenko
Postdoctoral Fellow,   Department of Psychological and Brain Sciences
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
WWW:   http://www.linkedin.com/in/yarik