print(round(101.543,2)) # 101.54 n > 0 from . go right print(round(101.543,-2)) # 100.0 n < 0 from . go left print(round(1.25,1)) # 1.2 print(round(1.35,1)) # 1.4 print(round(1.255,2)) # 1.25 print(round(1.355,2)) # error don't use, wrong answer print(round(-1.25,1)) # -1.2 print(round(-1.35,1)) # -1.4 from decimal import Decimal, ROUND_HALF_EVEN number = Decimal('1.345') number = number.quantize(Decimal('0.01'), rounding=ROUND_HALF_EVEN) print(number) number = Decimal('1.355') number = number.quantize(Decimal('0.01'), rounding=ROUND_HALF_EVEN) print(number)