Tidy up column definitions

daqviewer/tables.py

@@ -31,9 +31,9 @@ app.layout = html.Div([
     dash_table.DataTable(
         id='datatable-row-ids',
         columns=[
-            {'name': i, 'id': i, 'deletable': True} for i in df.columns
+            {'name': col, 'id': col} for col in df.columns
             # omit the id column
-            if i != 'id'
+            if col != 'id'
         ],
         data=df.to_dict('records'),
         editable=True,