Regular Expressions in Python Extra Credit

class Person:
    def __init__(self, first_name, last_name, email, phone, job, twitter):
        self.first_name = first_name
        self.last_name = last_name
        self.email = email
        self.phone = phone
        self.job = job
        self.twitter = twitter

class AddressBook:
    person_list = []
    search_result = []

    def __init__(self):
        return

    def add(self, person):
        self.person_list.append(person)

    def search(self, search_string):
        self.search_result = []
        for person in self.person_list:
            if search_string in (person.first_name or
            person.last_name or
            person.last_name or
            person.email or
            person.phone or
            person.job or
            person.twitter):
                self.search_result.append(person)
        self.print_search_result(search_string)

    def print_search_result(self, search_string):
        if len(self.search_result) == 0:
            print("No Results for \"{}\".".format(search_string))

        for person in self.search_result:
            print ('''
            Name: {} {}
            Email: {}
            Phone: {}
            Job: {}
            Twitter: {}
            '''.format(person.first_name, person.last_name, person.email,
                       person.phone, person.job, person.twitter))

import re

from address_book import AddressBook
from person import Person


address_book = AddressBook()


def search_tool(field):
    search_string = input('Searching {} in our Address Book:\n'.format(field))
    address_book.search(search_string)


names_file = open("names.txt", encoding="utf-8")
data = names_file.read()
names_file.close()

line = re.compile(r'''
    ^(?P<name>
        (?P<last_name>[-\w ]*),\s # Last name
        (?P<first_name>[-\w ]+) # First name
    )\t  # Last and first names
    (?P<email>[-\w\d.+]+@[-\w\d.]+)\t  # Email
    (?P<phone>\(?\d{3}\)?-?\s?\d{3}-\d{4})?\t  # Phone
    (?P<job>[\w\s]+,\s[\w\s.]+)\t?  # Job and company
    (?P<twitter>@[\w\d]+)?$  # Twitter
''', re.X | re.M)

for match in line.finditer(data):
    first_name = match.group('first_name')
    last_name = match.group('last_name')
    email = match.group('email')
    phone = match.group('phone')
    job = match.group('job')
    twitter = match.group('twitter')

    temp_person = Person(first_name, last_name, email, phone, job, twitter)
    address_book.add(temp_person)

while True:
    category = input('''
What would you like to search?
[F]irst name, [L]ast name, [E]mail, [P]hone number, [J]ob, [T]witter
Type 'Exit' to exit.
''')

    if category.upper() == "F":
        search_tool("First Name")
    elif category.upper() == "L":
        search_tool("Last Name")
    elif category.upper() == "E":
        search_tool("Email")
    elif category.upper() == "P":
        search_tool("Phone number")
    elif category.upper() == "J":
        search_tool("Job")
    elif category.upper() == "T":
        search_tool("Twitter")
    elif category.upper() == "EXIT":
        break
    else:
        print('Not a valid response. Please try again.')