def get_overall_ratings_for_exploration(exploration_id):
 exp_summary = exp_services.get_exploration_summary_by_id(exploration_id)
 return exp_summary.ratings

def get_overall_ratings_for_exploration ( exploration_id ) : exp_summary = exp_services . get_exploration_summary_by_id ( exploration_id ) return exp_summary . ratings
fetches all ratings for an exploration .