Bioinformatics with Python Cookbook - Second Edition

There's more...

You still have all the model information from the mmCIF file made available by Biopython, so the parser is still quite useful. You can expect more developments with the mmCIF parser than with the PDB parser.

There is a Python library for this that's been made available by the developers of PDB at http://mmcif.wwpdb.org/docs/sw-examples/python/html/index.html.