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f9e8d6d478
It wasn't considering that self._topics could be an empty dict because there are no topics and it would also reload it. Now we have None value to distinguish when it actually wasn't loaded before. Same for viewpoints, reference files and document references. I've also imade mplementations identical/more similar between v2 and v3.
bcf
A simple Python implementation of the BCF standard. Manipulation of BCF-XML is
available via bcfxml.py and manipulation of BCF-API is available via
bcfapi.py.