[Jython-bugs] [ jython-Bugs-1803227 ] Jython allowed to creat weak Ref for List , Tuple and Dict

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Bugs item #1803227, was opened at 2007-09-27 05:13
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: keshav upadhyaya (ukeshav)
Assigned to: Nobody/Anonymous (nobody)
Summary: Jython allowed to creat weak Ref for List ,Tuple and Dict

Initial Comment:
Jython allowed to creat Weak ref for List , Tuple and Dict object ...

And  does not work properly once we create proxy object to it...

Python does not  support Weak Ref for List ,Tuple and Dict Objects..

i am pasting some work around here...

Python behavior :-

>>> import weakref  as w
>>> a=(1,2,3,4)
>>> b=w.proxy(a)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: cannot create weak reference to 'tuple' object

jython behavior :-

>>> import weakref  as w
>>> a=(1,2,3,4)
>>> b=w.proxy(a)
>>> b
<weakref 1 to 'tuple' object 2>
>>> a=None
>>> b
<weakref 1 to 'tuple' object 2>

:- here b sud be None Type because a is None..
but it does not work at all because in java it is depends on the mood of Garbage collector.  :)






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