Port to Python3

CowBulls.py

@@ -246,6 +246,7 @@ def change_level(self, level):
         self.compare_list = []
         self.score = 0
         self.parent.update_score(self.score)
+        self.next_button.set_sensitive(False)
 
     def nextRound(self):
         g.screen.fill((0, 0, 0))

activity.py

@@ -33,7 +33,7 @@
 import CowBulls
 
 
-class CowBullsActivtiy(activity.Activity):
+class CowBullsActivity(activity.Activity):
 
     def __init__(self, handle):
         activity.Activity.__init__(self, handle)
@@ -153,7 +153,7 @@ def update_score(self, score):
     def _svg_str_to_pixbuf(self, svg_string):
         ''' Load pixbuf from SVG string '''
         pl = GdkPixbuf.PixbufLoader.new_with_type('svg')
-        pl.write(svg_string)
+        pl.write(svg_string.encode())
         pl.close()
         pixbuf = pl.get_pixbuf()
         return pixbuf

activity/activity.info

@@ -5,7 +5,7 @@ host_version = 1
 bundle_id = org.laptop.community.CowBulls
 icon = activity
 show_launcher = yes
-exec = sugar-activity activity.CowBullsActivtiy
+exec = sugar-activity3 activity.CowBullsActivity
 license = GPLv3+
 category = maths game
 summary = "CowBulls Math Puzzle game"

sugargame/canvas.py

@@ -4,7 +4,7 @@
 from gi.repository import GLib
 from sugar3.activity.activity import PREVIEW_SIZE
 import pygame
-import event
+import sugargame.event as event
 
 CANVAS = None
 
@@ -78,7 +78,7 @@ def get_preview(self):
         _surface = pygame.transform.scale(self._screen, (width, height))
         pygame.image.save(_surface, _file_path)
 
-        f = open(_file_path, 'r')
+        f = open(_file_path, 'rb')
         preview = f.read()
         f.close()
         os.remove(_file_path)

sugargame/event.py

@@ -139,7 +139,7 @@ def _keyup_cb(self, widget, event):
 
     def _keymods(self):
         mod = 0
-        for key_val, mod_val in self.mod_map.iteritems():
+        for key_val, mod_val in self.mod_map.items():
             mod |= self.__keystate[key_val] and mod_val
         return mod
 
@@ -168,7 +168,7 @@ def _keyevent(self, widget, event, type):
             self.__keystate[keycode] = type == pygame.KEYDOWN
             if type == pygame.KEYUP:
                 mod = self._keymods()
-            ukey = unichr(Gdk.keyval_to_unicode(event.keyval))
+            ukey = chr(Gdk.keyval_to_unicode(event.keyval))
             if ukey == '\000':
                 ukey = ''
             evt = pygame.event.Event(type, key=keycode, unicode=ukey, mod=mod)

utils.py

@@ -47,9 +47,9 @@ def get_num(level):
     num = [0]
     while num[0] == 0:
         if level == 3:
-                num = random.sample(range(0, 10), 3)
+                num = random.sample(list(range(0, 10)), 3)
         else:
-            num = [random.choice(range(0, 10)) for x in range(level)]
+            num = [random.choice(list(range(0, 10))) for x in range(level)]
     return num