Issue 15293: AST nodes do not support garbage collection (original) (raw)

Issue15293

Created on 2012-07-08 10:47 by pitrou, last changed 2022-04-11 14:57 by admin. This issue is now closed.

Messages (4)
msg165001 - (view)	Author: Antoine Pitrou (pitrou) *	Date: 2012-07-08 10:47
Add the following to test_ast: diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py --- a/Lib/test/test_ast.py +++ b/Lib/test/test_ast.py @@ -199,6 +199,7 @@ class AST_Tests(unittest.TestCase): x.foobar = 42 self.assertEqual(x.foobar, 42) self.assertEqual(x.__dict__["foobar"], 42) + x.x = x with self.assertRaises(AttributeError): x.vararg and you'll get a reference leak.
msg165030 - (view)	Author: Roundup Robot (python-dev)	Date: 2012-07-08 18:03
New changeset 85cccc38d01c by Benjamin Peterson in branch 'default': add gc support to the AST base type (closes #15293) http://hg.python.org/cpython/rev/85cccc38d01c
msg218908 - (view)	Author: Charles-François Natali (neologix) *	Date: 2014-05-22 18:38
Would it be possible to backport this to 2.7? We've been bitten by this at work (pyflakes introduces reference cycles in AST).
msg219059 - (view)	Author: Benjamin Peterson (benjamin.peterson) *	Date: 2014-05-24 22:13
How are you reproducing the bug? In Python 2, the AST base class doesn't have a __dict__, and it's subtypes do support GC.