[Python-bugs-list] [ python-Bugs-535474 ] xml.sax memory leak with ExpatParser

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Bugs item #535474, was opened at 2002-03-27 00:24
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=535474&group_id=5470

Category: XML
Group: Python 2.1.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Danny Yoo (dyoo)
Assigned to: Nobody/Anonymous (nobody)
Summary: xml.sax memory leak with ExpatParser

Initial Comment:
I've isolated a memory leak in the ExpatParser that
deals with the destruction of ContentHandlers.  I'm
including my test program test_memory_leak.py that
tests the behavior --- I generate a bunch of
ContentParsers, and see if they get destroyed reliably.


This appears to affect Python 2.1.1 and 2.1.2. 
Thankfully, the leak appears to be fixed in 2.2.1c. 
Here's some of the test runs:

### Python 2.1.1:
[dyoo@tesuque dyoo]$ /opt/Python-2.1.1/bin/python
test_memory_leak.py
This is a test of an apparent XML memory leak.
Test1:



Test2:
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
###



### Python 2.1.2:
[dyoo@tesuque dyoo]$ /opt/Python-2.1.2/bin/python
test_memory_leak.py
This is a test of an apparent XML memory leak.
Test1:
TestParser destructed.
TestParser destructed.



Test2:
###


### Python 2.2.1c
[dyoo@tesuque dyoo]$ /opt/Python-2.2.1c2/bin/python
test_memory_leak.py
This is a test of an apparent XML memory leak.
Test1:
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.



Test2:
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
TestParser destructed.
###





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>Comment By: Martin v. Löwis (loewis)
Date: 2002-03-27 13:24

Message:
Logged In: YES 
user_id=21627

Also, what kind of action do you expect. Chances are minimal
that there will be a 2.1.3 release, so why bother?

----------------------------------------------------------------------

Comment By: Martin v. Löwis (loewis)
Date: 2002-03-27 13:23

Message:
Logged In: YES 
user_id=21627

There's no uploaded file!  You have to check the
checkbox labeled "Check to Upload & Attach File"
when you upload a file.

Please try again.

(This is a SourceForge annoyance that we can do
nothing about. :-( )

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You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=535474&group_id=5470