PyRPM is a pure python module to extract information from a RPM package and to create YUM metadata. Supports generation/editing YUM repositories.

>>> from pyrpm.rpm import RPM
>>> rpm = RPM(file('package-1.0-r1.i586.rpm')
>>> rpm.binary # this means that the package is a rpm and not a src.rpm
True
>>> rpm.header.name
'package'
>>> rpm.header.architecture
'i586'
>>> rpm.header.description
'package description'