[ python-Bugs-1220756 ] Re-importing embedded thread dumps core

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Bugs item #1220756, was opened at 2005-06-14 22:16
Message generated for change (Comment added) made by mwh
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Category: Threads
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Jay T Miller (jaytmiller)
Assigned to: Nobody/Anonymous (nobody)
Summary: Re-importing embedded thread dumps core

Initial Comment:
I noticed the following while working on an "embedding
numarray" problem:

[jmiller at halloween Python-2.4.1]$
Python-2.4.1/Demo/embed/loop 'from thread import *' 10
[6675 refs]
[7009 refs]
[7320 refs]
[7631 refs]
[7942 refs]
[8253 refs]
loop: Objects/typeobject.c:2104: type_dealloc:
Assertion `type->tp_flags & (1L<<9)' failed.
Abort (core dumped)

The tp_flags bit in question is:

#define Py_TPFLAGS_HEAPTYPE (1L<<9)



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>Comment By: Michael Hudson (mwh)
Date: 2005-06-15 12:35

Message:
Logged In: YES 
user_id=6656

Oh dear.  The problem here is that PyModule_AddObject steals a 
reference to the object, but this is not taken care of in threadmodule.c (or 
gcmodule, it turns out, and I bet many other places).

Shouldn't be too hard to fix.

(Looks like noone's run Demo/embed/loop for a while...)

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