round to the nearest integer python

1int x = 6.3456824221
2
3#round(number_to_roundoff, round_off_till)
4#round_off_till is optional
5
6print(round(x))    		#output: 6
7print(round(x, 3)) 		#output: 6.346
8print(round(x, 1)  		#output: 6.3

1import random
2Variable = round(random.randint(10, 20)/10)*10
3#  this will return a random number to the nearest multiple of 10

1def myround(x, base=5):
2    return base * round(x/base)

1round(n, ndigits) # round(1.123456789,5) --> 1.12346