Python - Round to nearest 05

Question

Hvor can I en python do the following rounding:

Round to the nearest 05 decimal

7,97 -> 7,95

6,72 -> 6,70

31,06 -> 31,05

36,04 -> 36,

Answer 1

def round05(number):
    return (round(number * 20) / 20)

Or more generically:

def round_to_value(number,roundto):
    return (round(number / roundto) * roundto)

The only problem is because you're using floats you won't get exactly the answers you want:

>>> round_to_value(36.04,0.05)
36.050000000000004