Question

Define a function createPhonebook that accepts three arguments:

1. A list of first names
2. A list of last names
3. A list of phone numbers

All three arguments will have the same number of items. createPhonebook should return a dictionary where the keys are full names (first name then last name) and the values are phone numbers.

For example:

firstNames =   ['Jay', 'Daisy', 'Nick', 'Myrtle']
lastNames  =   ['Gatsby', 'Buchanan', 'Carraway', 'Wilson']
phones     =   ['5551212', '4441234', '4568309', '1456871']

phonebook = createPhonebook(firstNames, lastNames, phones)
# phonebook should be: {
#    'Jay Gatsby': '5551212',
#    'Daisy Buchanan': '4441234',
#    'Nick Carraway': '4568309',
#    'Myrtle Wilson': '1456871'
# }

Answer 1

def createPhonebook(firstNames, lastNames, phones):
    d = {}
    for i in range(len(firstNames)):
        d[firstNames[i] + ' ' + lastNames[i]] = phones[i]
    return d


# Testing the function here. ignore/remove the code below if not required
if __name__ == '__main__':
    firstNames = ['Jay', 'Daisy', 'Nick', 'Myrtle']
    lastNames = ['Gatsby', 'Buchanan', 'Carraway', 'Wilson']
    phones = ['5551212', '4441234', '4568309', '1456871']

    phonebook = createPhonebook(firstNames, lastNames, phones)
    print(phonebook)