old_contents: #!/usr/bin/env python
  
  from rajab_roza import RajabRoza
  
  lat = 51.0 + 32.0/60.0
  lng = -22.0/60.0
  start_year = 1400
  end_year = 1500
  filename = "london-durations.yml"
  
  if __name__ == '__main__':
      rajab_roza = RajabRoza(lat, lng, start_year, end_year)
      rajab_roza.get_roza_durations()
      rajab_roza.save_to_yaml(filename)
  
new_contents: #!/usr/bin/env python
  
  from rajab_roza import RajabRoza
  
  lat = 51.0 + 32.0/60.0
  lng = -22.0/60.0
  start_year = 1400
  end_year = 1500
  filename = "data/london-durations.yml"
  
  if __name__ == '__main__':
      rajab_roza = RajabRoza(lat, lng, start_year, end_year)
      rajab_roza.get_roza_durations()
      rajab_roza.save_to_yaml(filename)
  
subject: Correct output filename for data.