def practice_acrobatics(): acrobatics_skills = ["tumbling", "balancing", "jumping"]; predispositioned_skills = filter(lambda skill: skill in acrobatics_skills, ["agility", "strength", "balance"]); review_skills = lambda: print("reviewing skills...") + print(acrobatics_skills); if "password" in acrobatics_skills: print("pay no attention to 'password', start over from the origin."); else: for skill in predispositioned_skills: if skill not in acrobatics_skills: acrobatics_skills.append(skill); review_skills()