print only one decimal python code example

Example 1: python format only 1 decimal place

>>> "{0:0.1f}".format(45.34531)
'45.3'

Example 2: python round up

>>> import math

>>> math.ceil(5.2)
6

>>> math.ceil(5)
5

>>> math.ceil(-0.5)
0

Example 3: python round to dp

round(float_num, num_of_decimals)

Example 4: how to print answer 2 decimal places in python 3

print("{0:.2f}".format(sum(student_marks[query_name])/3))

Example 5: python round down

>>> int(1.6)
1
>>> int(2)
2
>>> int(3.9)
3