from pn import *

name = {'aaa':[1231231234,None,None,None],
        'bbb':[None,1231231234,None,6789231234],
        'ccc':[None,None,1231231234,None],
        'ddd':[None,None,None,1231231234]}

typet = ['Mobile','Work','Fax','Home']

persons = []

for pers, typex in name.items():
    numbers = []
    for i, number in enumerate(typex):
        if number == None:
            pass
        else:
            n = PhoneNumber(Number = str(number), Type = typet[i])
            numbers.append(n)
    p = Name(PersonsName = pers, Number = numbers)
    persons.append(p)

final = PhoneBook(Listing = persons)
filex = 'phonebook.xml'
with open(filex,'wt') as new:
    final.export(new, 1)