how to dstop automatic rounding off in python code example

Example 1: how to round to the nearest 25 python

def myround(x, base=5):
    return base * round(x/base)

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)