[Pythonmac-SIG] Garbage Collection with Carbon

[Ronald Oussoren]

On 18-apr-2006, at 18:28, Brian Ray wrote:

> Hi Python Mac People:
>
>
> When I run the following:
>
> ###
> import sys,os
> import Carbon.File
> import Carbon.CF
>
> def fileurl(posix):
> 	fileref = Carbon.File.FSRef(posix)
> 	cfurl = Carbon.CF.CFURLCreateFromFSRef(fileref)
>  	filestr = cfurl.CFURLGetString()
> 	return filestr.CFStringGetString()
>
> if __name__ == "__main__":
> 	
> 	print fileurl("/tmp")
> ###
>
> I get:
>
>
> python(7038) malloc: *** error for object 0x3101f0: double free
> python(7038) malloc: *** set a breakpoint in szone_error to debug
> file://localhost/private/tmp/
>
> Can anybody tell me what those errors mean? And BTW, does anybody know
> if this code works fine with an untouched Tiger install. I am
> considering making this an automater script and giving to some
> friends. Although, the script does not work at all in Automator but
> works on the command line with the result above. I wonder if this
> makes Automator think the script failed?


This means there's a bug in the Carbon wrappers. I can reproduce this
with my universal build as well as /usr/bin/python.

Ronald