how to make import from library into a module that is in the a package in python code example

Example 1: how to import python

import random
from os import name, system
import time as t

Example 2: importing modules with package in python

from pakage_name.module_name import function_name
# now we can directly use function

##################################  OR  ########################################

from pakage_name import module_name
# now we have to use module_name.function_name