how to round a number 5 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: round to nearest multiple of 5 python from both end

#round up to multiple of 5 from both end
def rof(x,y,z):
    if x%5==4:
        x+=1
    elif x%5==1:
        x-=1
    elif x%5==2:
        x-=2