x =1 y = 1.0 z = '1' print(type(x), type(y),type(z)) print(0.5-0.4) print(0.5-0.2) print(0.1 + 0.1 + 0.1) from decimal import Decimal x = Decimal ('0.1') print(type(x)) print(True), type (False) print print(type(None))