xlcnd / isbnlib-loc Goto Github PK

Hello,
I have not done any extensive testing, but with the three ISBNs provided in the test_metadata.py file, only one returns a complete result:

9780321534965 --> ok! all fields are found
9781118241257 --> no publisher nor year (ok if we use goob)
9780425284629 --> no publisher nor year (no publisher if we use goob)

Indeed, I checked that in _loc.py the SERVICE_URL asks for &recordSchema=dc and the info returned does NOT contain the publisher/date fields for those two ISBNs!
9781118241257 with dc
9780425284629 with dc
It's not that the parser is failing: the record is incomplete!

However, if you ask for &recordSchema=marcxml, both entries contain the publisher and year.
9781118241257 with marcxml
9780425284629 with marcxml

Again, I don't know how often this is a problem, or if there any deeper reasons to use the dc schema, but perhaps it deserves another look to consider changing the schema and parser.
There is a pymarc project in PyPi that maybe could be used to parse the marcxml result.
The LoC also offers the newer MODS schema that contains all the info correctly in the examples above. So that could be used if it is preferred over MARCXML.