According to distutils' test_bdist_rpm, bdist_rpm fails when running Python with -B/PYTHONDONTWRITEBYTECODE. (bdist_rpm or its test doesn't pass -B along but also doesn't use -E, so the test-failure shows up when setting the PYTHONDONTWRITEBYTECODE environment variable.) It looks like (somewhere in distutils) something relies on .pyc files being written, instead of explicitly using (say) py_compile.compile().

What change are you wishing for?  bdist_rpm is frozen in distutils and removed in distutils2.  If this is a feature request, it should be reported to the new standalone project bdist_rpm2 (home <https://bitbucket.org/tarek/pypi2rpm>; the bug tracker is not enabled, so I suggest you write to the distutils-sig ML).

I couldn't really care less about bdist_rpm, I'm just reporting a bug in it when not writing .pyc files (through PYTHONDONTWRITEBYTECODE.) I encountered it while making the testsuite do the right thing when not writing bytecode (see issue #11420.) To me, a perfectly acceptable "fix" would be for the bdist_rpm tests to be skipped when not writing bytecode.

I’d find such a patch acceptable too.  Thanks for the report and suggested solution.

I'll incorporate that change into issue #11420 then, and close this (and harp on bdist_rpm2 if it ever lands in the stdlib and has the same issue :-)

bdist_rpm2 will never go into the stdlib, that’s the point: external maintenance lets people adapt the code when operating system policies change and release more often than Python.  Sooner or later someone will report this same bug to the bdist_rpm2, so if you’re willing to do that now it would be extra nice.