Regex Extra Credit

import re


file = open('names.txt')
data = file.read()
file.close()

expr = re.compile(r'''
    ^(?P<last_name>[-\w ]+)?,\s # Last Name
    (?P<first_name>[-\w ]+)\t  # First Name
    (?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.M|re.X)


class Person:
    def __init__(self, **kwargs):
        for k, v in kwargs.items():
            setattr(self, k, v)

    def __str__(self):
        string = ''
        for k, v in self.__dict__.items():
            string += '{}: {}\n'.format(k, v)
        return string

    @classmethod
    def construct(cls, list, expr, data):
        for match in expr.finditer(data):
            list.append(cls(**match.groupdict()))


class AddressBook(list):
    def search(self, term=None):
        if term:
            result = []
            for person in self:
                for k, v in person.__dict__.items():
                    try:
                        if term in v and person not in result:
                            result.append(person)
                    except (AttributeError, TypeError):
                        continue
            return result
        return self


if __name__ == "__main__":
    address_book = AddressBook()
    Person.construct(address_book, expr, data)
    for item in address_book.search('kenneth'):
        print(item)