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Tue Jun 1 07:03:36 EDT 2004 · https://mail.python.org/pipermail/python-dev/2004-June/045083.html

Hello Michel,

Michel Pelletier wrote:
> I have written up a rough draft PEP on bytecode verification:
> 
> http://www.python.org/peps/pep-0330.html
just allow me a quick remark:
   (len(co_code) < sizeof(unsigned char) - 1)
==
   (len(co_code) < 0)
which might not be what you want. I suppose you are aiming for an 
expression involving UCHAR_MAX.

Thanks,
Michael

> I also have a sketch implementation written in Python that I have uploaded:
> 
> http://www.daca.net:8080/verify.tgz
> 
> This implementation does not really work yet, and there are only a couple of 
> unit tests, mostly because I am not a bytecode expert, but I think the 
> framework is pretty close to being usable and I'm getting a better grasp on 
> the issue.  It is based on the algorithm posted by Phillip Eby, and feedback 
> on it would be great.
> 
> -Michel
> 
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[Python-Dev] PEP 330 Python bytecode verification