Fix some non-python 3 things

Author: DasFranck

sc2reader/engine/plugins/context.py

@@ -30,7 +30,10 @@ def handleAbilityEvent(self, event, replay):
                 event.logger.error(replay.filename)
                 event.logger.error("Release String: "+replay.release_string)
                 for player in replay.players:
-                    event.logger.error("\t"+unicode(player).encode('ascii', 'ignore'))
+                    try:
+                        event.logger.error("\t"+unicode(player).encode('ascii', 'ignore'))
+                    except:
+                        event.logger.error("\t"+player.__str__())
 
             self.logger.error("{0}\t{1}\tMissing ability {2:X} from {3}".format(event.frame, event.player.name, event.ability_id, replay.datapack.__class__.__name__))
 

sc2reader/engine/plugins/creeptracker.py

@@ -1,10 +1,16 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, print_function, unicode_literals, division
 
-from sets import Set
+try:
+    from sets import Set
+except:
+    Set = set
 from PIL.Image import open as PIL_open
-from PIL.Image import ANTIALIAS 
-from StringIO import StringIO
+from PIL.Image import ANTIALIAS
+try:
+    from StringIO import StringIO
+except:
+    pass
 from collections import defaultdict
 from itertools import tee