Script that converts a phone number to alternatives phone “words”

tel2txt.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-

import os
import sys

_num2char = [
    '0+   ',
    '1    ',
    '2ABC ',
    '3DEF ',
    '4GHI ',
    '5JKL ',
    '6MNO ',
    '7PQRS',
    '8TUV ',
    '9WXYZ',
]

def tel2txt(tel):
    tel = tel.replace(' ', '')
    txt = ''
    for line in xrange(5):
        txt += '\n'
        for num in tel:
            txt += _num2char[int(num)][line] + '\t'
    return txt[1:]

if __name__ == '__main__':
    if len(sys.argv) != 2:
        print >> sys.stderr, 'Usage: %s <number>' % sys.argv[0].split(os.sep)[-1]
        sys.exit(1)

    print tel2txt(sys.argv[1])