fix: manually redirect OBO PURLs identifying an NCBITaxon entity to RDF representation on Ontobee

obolibrary changed the redirection target of a PURLs
identifying an entity on NCBITaxon from an RDF
representation on Ontobee to an HTML representation
on the NIH official site as of
OBOFoundry/purl.obolibrary.org#1066.
Our logic requires the representations to be RDF, so
we are redirecting the affected PURLs to the
corresponding RDF representation manually.

Author: yarikoptic

dandi/metadata/util.py

@@ -425,7 +425,11 @@ def parse_purlobourl(
     :return: dictionary containing found nodes
     """
 
-    req = requests.get(url, allow_redirects=True)
+    if url.startswith(NCBITAXON_URI_TEMPLATE.format("")):
+        rdf_content_url = f"https://ontobee.org/ontology/rdf/NCBITaxon?iri={url}"
+        req = requests.get(rdf_content_url, allow_redirects=True)
+    else:
+        req = requests.get(url, allow_redirects=True)
     req.raise_for_status()
     doc = parseString(req.text)
     for elfound in doc.getElementsByTagName("Class"):