how to round numbers in python 3 code example

Example 1: how to round a number in python

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

Example 2: round numbers python

variableName.round(3)
round(variableName, 3)
print('{: .3f}'.format(variableName))
print("variableName : %0.3f" % variableName)