On Tue, Apr 1, 2008 at 6:34 AM, Neal Norwitz <[EMAIL PROTECTED]> wrote:
> test_io is the only leaky test on trunk that I know of. I narrowed
> down the leaks to the code below.
>
> It's possible there are other leaks in test_io.
>
> n
> --
> import sys, gc
> import _fileio, io
>
> class FileIO(_fileio._FileIO, io.RawIOBase):
> def close(self):
> io.RawIOBase.close(self)
>
> def main():
> class MyFileIO(FileIO): pass
> f = MyFileIO('tt-test', "w")
> f.close()
>
> for i in range(10):
> main()
> print(gc.collect())
> print(sys.gettotalrefcount())
The problem is that the MyFileIO class is registered in
io.RawIOBase._abc_cache, and never freed.
This is a problem with ABCs: _abc_cache should be changed to a
WeakSet, like python3.0 did.
I filed http://bugs.python.org/issue2521 about this problem.
--
Amaury Forgeot d'Arc
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
