how to round off to nearest 0.5 in python code example

Example 1: how to round a decimal to the nearest whole number in python

>>> import math

>>> math.ceil(1.2)
2

>>> math.ceil(2)
2

>>> math.ceil(-0.5)
0

Example 2: how to round to the nearest 25 python

def myround(x, prec=2, base=.05):
  return round(base * round(float(x)/base),prec)