string.format 4 digit number after decimal in python code example

Example 1: format to 2 or n decimal places python

num = 123.4567
formatted_num = '{0:.2f}'.format(num) # to 2 decimal places
# formatted_num = '123.46'

Example 2: f string decimal places

>>> a = 10.1234
>>> f'{a:.2f}'
'10.12'