@divad12 @mduan How about I replace

`sources = [
        {
            'name': 'opendata2',
            'clean_fn': clean_opendata_course,
            'dir': c.OPENDATA2_COURSES_DATA_DIR,
        },
    ]` 

with

`source =  {
                  'name': 'opendata2',
                  'clean_fn': clean_opendata_course,
                  'dir': c.OPENDATA2_COURSES_DATA_DIR,
               }`