What is bibtexparser.model.DuplicateFieldKeyBlock ?

[keithbriggs]

I'm getting

Unknown block type <class 'bibtexparser.model.DuplicateFieldKeyBlock'>

when I apply bibtexparser.parse_file to some of my .bib files. But then it doesn't seem possible to dump the fields to find the source of the problem.

And bibtexparser.model.DuplicateFieldKeyBlock is not documented.

[auge]

sounds like you have duplicate keys in your bib file.
you could try to open your bib file with e.g. JabRef