https://pypi.org/project/marc21/ Recent updates to the Python Package Index for marc21 en https://pypi.org/project/marc21/0.5.2/ A python library for creating MARC21 records with an extendible and mutable dictionary of allowed MARC21 tags and subfields. jwvdvuurst@gmail.com Wed, 18 Jun 2025 09:11:35 GMT