Initia QtCore port to python3.

tests/QtCore/bug_724.py

@@ -1,21 +1,22 @@
-from PySide.QtCore import *
+from PySide.QtCore import QAbstractFileEngine, QIODevice, QFile
 import unittest
 import tempfile
 import os
+import py3kcompat as py3k
 
 class TestBug724 (unittest.TestCase):
 
     def testIt(self):
         # creates a temporary file
         handle, self.filename = tempfile.mkstemp()
-        os.write(handle, 'a')
+        os.write(handle, py3k.b('a'))
         os.close(handle)
 
         engine = QAbstractFileEngine.create(self.filename)
         engine.open(QIODevice.ReadOnly)
         memory = engine.map(0, 1, QFile.NoOptions)
         self.assertEqual(len(memory), 1)
-        self.assertEqual(memory[0], 'a')
+        self.assertEqual(memory[0], py3k.b('a'))
         engine.unmap(memory)
 
 if __name__ == '__main__':