Provenance for not-opened xdsets

tzis/provenance.py

@@ -88,7 +88,8 @@ class Provenance(object):
         attributes = {}
         default_atts = ["chunkdim", "startchunk", "target_mb", "open_mfdataset_kwargs"]
         for key in default_atts:
-            attributes[TZIS[key]] = pargs[key]
+            if key in pargs.keys():
+                attributes[TZIS[key]] = pargs[key]
         activity.add_attributes(attributes)
 
     def gen_input(self, input_type, input_ids):

tzis/tzis.py

@@ -755,7 +755,7 @@ class Tzis:
                         f"input_{first_attr}", self.mf_dset.attrs[first_attr]
                     )
             elif self.verbose:
-                print("Cannot create input provenance")
+                print("Cannot create input provenance because no attrs given.")
 
         else:
             pargs["open_mfdataset_kwargs"] = json.dumps(OPEN_MFDATASET_KWARGS)