fix: use NameError to capture lack of rdflib when writing rdf

Author: satra

nipype/interfaces/base.py

@@ -1192,15 +1192,15 @@ def write_provenance(self, results, filename='provenance', format='turtle'):
         try:
             if format in ['turtle', 'all']:
                 g.rdf().serialize(filename + '.ttl', format='turtle')
-        except ImportError:
+        except (ImportError, NameError):
             format = 'all'
         finally:
             if format in ['provn', 'all']:
                 with open(filename + '.provn', 'wt') as fp:
                     fp.writelines(g.get_provn())
             if format in ['json', 'all']:
                 with open(filename + '.json', 'wt') as fp:
-                    prov.json.dump(g, fp, cls= prov.ProvBundle.JSONEncoder)
+                    pm.json.dump(g, fp, cls=pm.ProvBundle.JSONEncoder)
         return g
 
 

nipype/pipeline/utils.py

@@ -938,14 +938,14 @@ def write_prov(graph, filename=None, format='turtle'):
     try:
         if format in ['turtle', 'all']:
             g.rdf().serialize(filename + '.ttl', format='turtle')
-    except ImportError:
+    except (ImportError, NameError):
         format = 'all'
     finally:
         if format in ['provn', 'all']:
             with open(filename + '.provn', 'wt') as fp:
                 fp.writelines(g.get_provn())
         if format in ['json', 'all']:
             with open(filename + '.json', 'wt') as fp:
-                prov.json.dump(g, fp, cls= prov.ProvBundle.JSONEncoder)
+                prov.json.dump(g, fp, cls=prov.ProvBundle.JSONEncoder)
     return g