[Python-Dev] Garbage collecting closures
Guido van Rossum
guido@python.org
Fri, 11 Apr 2003 20:45:40 -0400
> Does this bug look familiar to anyone?
>
> import gc
>
> def bar(a):
> def foo():
> return None
> x = a
> foo()
>
> class C:pass
> a = C()
>
> for i in range(20):
> print len(gc.get_referrers(a))
> x = bar(a)
>
> On my Python, it just counts up. "a" gets more and more referrers and
> they are "cell" objects. If it is unknown, I'll submit a bug report
> unless someone fixes it before I get to it. ;)
If I use a "while 1" loop, the count never goes above 225.
--Guido van Rossum (home page: http://www.python.org/~guido/)