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Date: Wed, 2 Apr 2014 01:29:30 +1100
Subject: Re: Strange message from a program
From: Chris Angelico <rosuav@gmail.com>
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On Wed, Apr 2, 2014 at 1:14 AM, Damien Touraine
<damien.touraine@limsi.fr> wrote:
> I have a big program with several dependencies (mainly PySide). But,
> sometimes, it fails with :RuntimeError: Can't find converter for
> '\ufffd\ufffd' to call Python meta method. The given string ('\ufffd\ufffd')
> is changing each time. Moreover, it can make a segmentation fault, but not
> each time it fails.

It would be a huge help if you copy and paste the entire traceback:
everything that Python emits.

Does the given string always have particular characters listed? It
looks like you may be having some sort of character encoding issue;
\ufffd means U+FFFD, the "Replacement Character" used when something
can't be decoded correctly.

ChrisA