Issue 1012315: weakref.WeakValueDictionary should override .has_key() (original) (raw)
Issue1012315
Created on 2004-08-19 16:39 by myers_carpenter, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Messages (2) | ||
|---|---|---|
| msg22141 - (view) | Author: Myers Carpenter (myers_carpenter) | Date: 2004-08-19 16:39 |
| .has_key() currently does not return the correct info for a weakref.WeakValueDictionary. When you call it some times tells you that a key exists even tho the value is no longer in RAM. | ||
| msg22142 - (view) | Author: Raymond Hettinger (rhettinger) *  |
Date: 2004-08-19 21:49 |
| Logged In: YES user_id=80475 I loaded a fix into Py2.4. See Lib/weakref.py 1.25 What was there before should have worked fine but it is possible that values were being deleted by GC or threads after the internal has_key check and the return. The patch goes a step further and checks a lookedup object for a None value. |
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:06 | admin | set | github: 40789 |
| 2004-08-19 16:39:04 | myers_carpenter | create |