with import python code example

Example 1: using python function by import

(in python3) ---
from .filename import function_name

Example 2: python import

from time import sleep
# or import time

a = 10
sleep(4) # sleep function from time library
print(a)

Example 3: python import

import datetime #import module
from datetime import timedelta #import method from module

#You can also use alias names for both
import datetime as dt
from datetime import timedelta as td

Example 4: import in python

import math

print(math.pi) # Prints the value of pi