[BioPython] GenBank Parser and large files?

[Stephan Herschel]

   Hi,
   I'm parsing some genebank files. When parsing large files it appears
   the parser eats up all of my memory until nothing is left, i.e. it's
   not possible to parse large files (>25 MB).
   That's the way I do it:
   >>> from Bio import GenBank
   >>> fh=open(fname,'r')
   >>> feature_parser=GenBank.FeatureParser()
   >>> gb_iterator = GenBank.Iterator(fh, feature_parser)
   >>> cur_record = gb_iterator.next()
   Is there a way to circumvent this problem?
   Thanks,
   Stephan