ping a site python3 code example

Example: how to ping a website in python

from os import system
print('1. Ping Google')
print('2. Ping Yahoo')
print('3. Ping custom URL')
while True:
    key = int(input('Input your choice: '))
    if key == 1:
            system("ping www.google.com")
    elif key == 2:
            system("ping www.yahoo.com")
    elif key == 3:
            url = input('Enter URL: ')
            system("ping " + url)
    else:
            print("Invalid Option!")