datacite: handle case of empty-string version

Includes a tiny tweak to the datacite import sample file to test this
code path.

3 files changed, 3 insertions, 2 deletions

diff --git a/python/fatcat_tools/importers/datacite.py b/python/fatcat_tools/importers/datacite.py
index 6c050565..d4ff6784 100644
--- a/python/fatcat_tools/importers/datacite.py
+++ b/python/fatcat_tools/importers/datacite.py
@@ -618,7 +618,7 @@ class DataciteImporter(EntityImporter):
         # Edition", "20191024", "v2.0.0", "v0.9.3", "10149", "2.0", null,
         # "v0.1.1", "3.0", "1.0", "3", "v1.12.2", "20191018", "v0.3.1", "v1.0",
         # "10161", "10010691", "10780", # "Presentación"
-        version = attributes.get('version')
+        version = attributes.get('version') or None
 
         # top-level extra keys
         if not container_id and container_name:
diff --git a/python/tests/files/datacite_sample.jsonl b/python/tests/files/datacite_sample.jsonl
index dba3e267..b36898ed 100644
--- a/python/tests/files/datacite_sample.jsonl
+++ b/python/tests/files/datacite_sample.jsonl
@@ -1 +1 @@
-{"id":"10.18730/8dym9","type":"dois","attributes":{"doi":"10.18730/8dym9","identifiers":[{"identifier":"https://doi.org/10.18730/8dym9","identifierType":"DOI"},{"identifier":"ICDW 20791","identifierType":"Other"}],"creators":[{"name":"GLIS Of The ITPGRFA","affiliation":[]}],"titles":[{"title":"Triticum turgidum L. subsp. durum (Desf.) Husn. 97090"}],"publisher":"International Centre for Agricultural Research in Dry Areas","container":{},"publicationYear":2017,"subjects":[{"subject":"Plant Genetic Resource for Food and Agriculture"}],"contributors":[{"name":"International Centre For Agricultural Research In Dry Areas","affiliation":[]}],"dates":[{"date":"1986","dateType":"Accepted"},{"date":"1978-06-03","dateType":"Collected"},{"date":"2017","dateType":"Issued"}],"language":"en","types":{"ris":"GEN","bibtex":"misc","citeproc":"article","schemaOrg":"CreativeWork","resourceType":"PGRFA Material","resourceTypeGeneral":"PhysicalObject"},"relatedIdentifiers":[{"schemeUri":"http://www.fao.org/plant-treaty/areas-of-work/global-information-system/descriptors","schemeType":"XML","relationType":"HasMetadata","relatedIdentifier":"https://ssl.fao.org/glisapi/v1/pgrfas?doi=10.18730/8DYM9","relatedIdentifierType":"URL","relatedMetadataScheme":"GLIS Descriptors"},{"schemeUri":"http://rs.tdwg.org/dwc/terms/guides/text/index.htm","schemeType":"DwC-A","relationType":"HasMetadata","relatedIdentifier":"https://ssl.fao.org/glisapi/v1/pgrfas?_format=dwc&doi=10.18730/8DYM9","relatedIdentifierType":"URL","relatedMetadataScheme":"Darwin Core Archive"}],"sizes":[],"formats":[],"version":null,"rightsList":[],"descriptions":[{"description":"Plant Genetic Resource.<br>Taxonomy: Triticum turgidum L. subsp. durum (Desf.) Husn.<br>Common name(s): Wheat<br>Conserved by: International Centre for Agricultural Research in Dry Areas (ICARDA), Lebanon<br>Local sample unique identifier: 97090<br>Method of creation: Acquisition<br>Date: 1986<br>Biological status: Traditional cultivar/landrace<br>Other identifiers: ICDW 20791<br>MLS status: Included<br>Historical: No","descriptionType":"Abstract"}],"geoLocations":[{"geoLocationPlace":"Collecting site","geoLocationPoint":{"pointLatitude":"35.5","pointLongitude":"23.7333"}}],"fundingReferences":[],"url":"https://ssl.fao.org/glis/doi/10.18730/8DYM9","contentUrl":null,"metadataVersion":3,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"created":"2017-11-11T12:26:01.000Z","registered":"2017-11-11T12:26:02.000Z","published":"2017","updated":"2019-08-02T16:34:56.000Z"},"relationships":{"client":{"data":{"id":"fao.itpgrfa","type":"clients"}}}}
+{"id":"10.18730/8dym9","type":"dois","attributes":{"doi":"10.18730/8dym9","identifiers":[{"identifier":"https://doi.org/10.18730/8dym9","identifierType":"DOI"},{"identifier":"ICDW 20791","identifierType":"Other"}],"creators":[{"name":"GLIS Of The ITPGRFA","affiliation":[]}],"titles":[{"title":"Triticum turgidum L. subsp. durum (Desf.) Husn. 97090"}],"publisher":"International Centre for Agricultural Research in Dry Areas","container":{},"publicationYear":2017,"subjects":[{"subject":"Plant Genetic Resource for Food and Agriculture"}],"contributors":[{"name":"International Centre For Agricultural Research In Dry Areas","affiliation":[]}],"dates":[{"date":"1986","dateType":"Accepted"},{"date":"1978-06-03","dateType":"Collected"},{"date":"2017","dateType":"Issued"}],"language":"en","types":{"ris":"GEN","bibtex":"misc","citeproc":"article","schemaOrg":"CreativeWork","resourceType":"PGRFA Material","resourceTypeGeneral":"PhysicalObject"},"relatedIdentifiers":[{"schemeUri":"http://www.fao.org/plant-treaty/areas-of-work/global-information-system/descriptors","schemeType":"XML","relationType":"HasMetadata","relatedIdentifier":"https://ssl.fao.org/glisapi/v1/pgrfas?doi=10.18730/8DYM9","relatedIdentifierType":"URL","relatedMetadataScheme":"GLIS Descriptors"},{"schemeUri":"http://rs.tdwg.org/dwc/terms/guides/text/index.htm","schemeType":"DwC-A","relationType":"HasMetadata","relatedIdentifier":"https://ssl.fao.org/glisapi/v1/pgrfas?_format=dwc&doi=10.18730/8DYM9","relatedIdentifierType":"URL","relatedMetadataScheme":"Darwin Core Archive"}],"sizes":[],"formats":[],"version":"","rightsList":[],"descriptions":[{"description":"Plant Genetic Resource.<br>Taxonomy: Triticum turgidum L. subsp. durum (Desf.) Husn.<br>Common name(s): Wheat<br>Conserved by: International Centre for Agricultural Research in Dry Areas (ICARDA), Lebanon<br>Local sample unique identifier: 97090<br>Method of creation: Acquisition<br>Date: 1986<br>Biological status: Traditional cultivar/landrace<br>Other identifiers: ICDW 20791<br>MLS status: Included<br>Historical: No","descriptionType":"Abstract"}],"geoLocations":[{"geoLocationPlace":"Collecting site","geoLocationPoint":{"pointLatitude":"35.5","pointLongitude":"23.7333"}}],"fundingReferences":[],"url":"https://ssl.fao.org/glis/doi/10.18730/8DYM9","contentUrl":null,"metadataVersion":3,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"created":"2017-11-11T12:26:01.000Z","registered":"2017-11-11T12:26:02.000Z","published":"2017","updated":"2019-08-02T16:34:56.000Z"},"relationships":{"client":{"data":{"id":"fao.itpgrfa","type":"clients"}}}}
diff --git a/python/tests/import_datacite.py b/python/tests/import_datacite.py
index b94b6bc5..ba09ba74 100644
--- a/python/tests/import_datacite.py
+++ b/python/tests/import_datacite.py
@@ -385,6 +385,7 @@ def test_datacite_dict_parse(datacite_importer):
         assert r.contribs[0].given_name == None
         assert r.contribs[0].surname == None
         assert len(r.refs) == 0
+        assert r.version == None
 
 
 def test_datacite_conversions(datacite_importer):