[Biopython] Is Bio.Crystal still useful (for NDB files)?

[Peter]

Hello all,

Is anyone using Bio.Crystal? It is a parser for a subset of the PDB format
which used to be used by the The Nucleic Acid Database Project. My
impression from their website is that they are moving all their data to
the PDB format - but still have some structures that are present only
in the NDB format:

http://ndbserver.rutgers.edu/download_data/index.html

I'm asking because Bio.Crystal needs some updating to avoid
deprecation warnings in the latest versions of Python - and it
might be simpler just to deprecate it instead.

Peter