[Python-Dev] Mysterious Python pyc file corruption problems

David Malcolm dmalcolm at redhat.com
Fri May 17 19:19:27 CEST 2013

On Fri, 2013-05-17 at 12:42 -0400, Barry Warsaw wrote:
> On May 16, 2013, at 04:52 PM, Terry Jan Reedy wrote:
> >If the corruption only happens on Ubuntu, that would constitute 'rhyme'
> >;-). I realize that asking for reports on other systems is part of the reason
> >you posted, but I don't remember seeing any others yet.
> Right. :)  It's harder to dig out similar problems in Debian[1] but it's
> pretty clear that there have been *some* similar reports in Debian.  Ubuntu
> and Debian share almost all their Python infrastructure.  It would definitely
> be interesting to whether Fedora/RedHat or any other Linux distros have seen
> similar problems.

FWIW I don't recall seeing such problems on Fedora/RH, though that could
be due to...

> I don't know how Fedora/RH does package installation.  In Debian/Ubuntu, we do
> not ship pyc files, but instead they are generated in "post-installation"
> scripts, which boil down to calls to `$PYTHON -m py_compile - < filenames`.

Fedora/RH pregenerate the .pyc files during rpm creation, and they exist
as part of the rpm payload.


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