phonenum.py2

#!/usr/bin/python2
from sys import argv
#import timeit
import itertools
data = open(argv[1],'r').read().splitlines()

TR = {\
     0:('0'), 1:('1'),
     2:('a','b','c'),
     3:('d','e','f'),
     4:('g','h','i'),
     5:('j','k','l'),
     6:('m','n','o'),
     7:('p','q','r','s'),
     8:('t','u','v'),
     9:('w','x','y','z')
     }
results=[]

def main(line): #this is looped from input
# line is defined to be a number mapping to the dictionary
# each number in the line is iterated through all possible combos
 #print('this is a new shot for ', line)
  line = [int(a) for a in list(line)]
  out=[]
  for num in list(line):
    a=[]
    for ch in TR[num]:
      a.append(ch)
    out.append(a)
  o = []

  for x in (itertools.product(*out)):
    o.append(''.join( x ))
  o.sort()
  results.append(o)

for line in data:
  if not line:
    continue
  main(line)
#  timeit.Timer(main(line)).timeit()

for l in results:
  print ','.join(l)