docs: def main():
      """
      script to find a list of recipes for a group of people 
      with specific likes and dislikes.
      
      Output of script
  
          best ingred  =  ['Tea', 'Tofu', 'Cheese', 'Cucumber', 'Salad', 'Chocolate']
          worst ingred =  ['Fish', 'Lamb', 'Pie', 'Asparagus', 'Chicken', 'Turnips']
          Use this =  Tofu
          Use this =  Cheese    
       
      """
      s = rawdata.content.DataFiles()
      all_ingredients = list(s.get_collist_by_name(data_files[1]['file'], data_files[1]['col'])[0])
      #find_best_ingredients(ingredients_on_hand, dinner_guests)
      best_ingred, worst_ingred = find_best_ingredients(all_ingredients, dinner_guests)
  
      print('best ingred  = ', best_ingred)
      print('worst ingred = ', worst_ingred)
      
      for have in ingredients_on_hand:
          if have in best_ingred:
              print('Use this = ', have)