Question

Write a Python function add_contact() that accepts a dictionary phone_book, a name, and a phone number. The function should add the name and phone number to the dictionary. If the name already exists, print “Contact already exists” instead of updating it.

Answer 1

def add_contact(phone_book, name, number):
  if name in phone_book:
     print("Contact already exists")
  else:
    phone_book[name] = number
    print("Contact added successfully")