[Distutils] I need to create a customized Fedora live cd with Python applications on it

Phillip J. Eby pje at telecommunity.com
Tue May 29 21:43:37 CEST 2007

At 02:10 PM 5/29/2007 -0400, Stanley A. Klein wrote:
>I found a report on bugzilla.redhat.com, "Bug 236535 Processed:
>brp-python-bytecompile does not work with bdist-rpm target" and am cc:'ing
>the cc: list for that bug on this email.
>I posted a comment to that bug strongly urging the Fedora packaging people
>and the Python packaging people to get their heads together and resolve
>this issue.
>For the benefit of the people on the Fedora bug cc: list, a posting to the
>Python distutils list that describes my problem can be found at

Hi Stanley.  I reviewed the notes on the bug; this definitely 
explains why I haven't been able to reproduce your problem under 
CentOS (which is where I was testing it).

It looks to me like there are two possible long-term fixes:

1. The Fedora folks could fix brp-python-bytecompile to automatically 
add the *.pyo files to the installed-files list (and adjust the 
compilation location) to remove the error(s).  (I think this is the 
best approach, as it ensures Fedora's policy is followed even for 
user-built RPMs.)

2. I could change setuptools to always generate *.pyo files when 
creating RPMs, or to have the option to do so -- and we'd also have 
to change the distutils in Python.

The big problem with option #2 is that even if it were considered a 
bugfix for Python (which it *isn't*, since clearly the Fedora policy 
change is what's breaking it), it would have to wait until a Python 
2.5.x release.  Is Fedora even *using* 2.5 yet?

In the meantime, there is one workaround you can use with your 
distutils package.  Add the following two lines to 'setup.cfg' in the 
package root, adjacent to the 'setup.py' file:

optimize = 1

This will force all RPM's built with the package to include *.pyo 
files, which should then dodge the

(By the way, *.pyo files actually aren't all that useless.  More 
recent versions of Python actually do a few optimizations on the 
generated bytecode, including things like constant folding, in 
addition to removing "if __debug__:" blocks and "assert" statements.)

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