added encoding. Decided itertools.zip_longest was overkill, refactored to use simpler method.

Tennis/python/tennis.py

@@ -1,4 +1,4 @@
-
+# -*- coding: utf-8 -*-
 
 class TennisGameDefactored1:
 

Tennis/python/tennis_test.py

@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 import pytest
 from tennis import TennisGame
 

Tennis/python/tennis_unittest.py

@@ -1,5 +1,6 @@
+# -*- coding: utf-8 -*-
+
 import unittest
-from itertools import izip_longest
 
 from tennis import TennisGame
 
@@ -52,10 +53,10 @@ test_cases = [
 
 def play_game(p1Points, p2Points, p1Name, p2Name):
     game = TennisGame(p1Name, p2Name)
-    for p1, p2 in izip_longest(range(p1Points), range(p2Points)):
+    for i in range(max(p1Points, p2Points)):
-        if p1 is not None:
+        if i < p1Points:
             game.won_point(p1Name)
-        if p2 is not None:
+        if i < p2Points:
             game.won_point(p2Name)
     return game