WIP: #45 - WTO: Write datasets in JSON repo for "annually" category

Merge request for management#45 (closed)

wto_to_dbnomics.py

@@ -366,6 +366,9 @@ def create_dataset_and_series_from_csv(dataset, dataset_path):
             dimensions_keys_set.add(dimensions_key)
             if not dimensions_key in observations.keys():
                 observations[dimensions_key] = {'unit': row['Unit'], 'observations': []}
+            assert row['Unit'].strip() == observations[dimensions_key]['unit'], \
+                "Unhandled situation: the file {} contains more than one value for 'Unit' !".format(dataset['filename'])
+            # Store observation
             observations[dimensions_key]['observations'].append([row['Year'], row['Value']])
 
     # Create series directories, each including series.json and observations.tsv files.