String permutations Hard challenge on CodeEval

string_permutations.py

import itertools
import sys

def sort_perm(perm_list):
	''' This will sort the list of permutations in
		your into a list of tuples/list'''
	teh_list = sorted(perm_list)
	for item in teh_list:
		
		if (item == teh_list[len(teh_list) - 1]):
			for letter in item:
				if (letter == item[len(item) - 1]):
					print("{0}".format(letter))
				else:
					print("{0}".format(letter), end="")
		
		else:
			for letter in item:
				print("{0}".format(letter), end="")
			print(",", end="")

def create_permutations(string):
	result = itertools.permutations(string, len(string))
	return result

with open(sys.argv[1], "r") as f:
	for line in f:
		perm_list = []
		for perm in create_permutations(line.strip('\n')):
			
			perm_list.append(perm)
		sort_perm(perm_list)

Could make this more efficient. Will get on that.