decimal place in python with format code example

Example 1: python format only 1 decimal place

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

Example 2: python 2 decimal places format

>>> foobar = 3.141592
>>> print(f'My number is {foobar:.2f} - look at the nice rounding!')

My number is 3.14 - look at the nice rounding!