print None in [None, None, None] # True print None in None # Error

func = lambda x: 'fuga' if x else 'hoge' print func(0) # hoge print func(1) # fuga

twins = { 'Jiro' : 'dosu', 'Saburo': 'udeppushi' } $ python >>> twins {'Saburo': 'female', 'Jiro': 'male'} >>> twins.update({'Taro' : 'male'}) >>> twins {'Saburo': 'female', 'Taro': 'male', 'Jiro': 'male'}