python format string precision 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: python format float

>>> x = 13.949999999999999999
>>> x
13.95
>>> g = float("{:.2f}".format(x))
>>> g
13.95
>>> x == g
True
>>> h = round(x, 2)
>>> h
13.95
>>> x == h
True

Example 3: python format specifier

from datetime import datetime

'{:%Y-%m-%d %H:%M}'.format(datetime(2001, 2, 3, 4, 5))