Python 3 compatibility

test/lib/TestMac.py

 # Copyright (c) 2014 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 TestMac.py:  a collection of helper function shared between test on Mac OS X.
 """
 
+from __future__ import print_function
+
 import re
 import subprocess
 
 __all__ = ['Xcode', 'CheckFileType']
 
 
 def CheckFileType(test, file, archs):
   """Check that |file| contains exactly |archs| or fails |test|."""
   proc = subprocess.Popen(['lipo', '-info', file], stdout=subprocess.PIPE)
   o = proc.communicate()[0].strip()
   assert not proc.returncode
   if len(archs) == 1:
     pattern = re.compile('^Non-fat file: (.*) is architecture: (.*)$')
   else:
     pattern = re.compile('^Architectures in the fat file: (.*) are: (.*)$')
   match = pattern.match(o)
   if match is None:
-    print 'Ouput does not match expected pattern: %s' % (pattern.pattern)
+    print('Ouput does not match expected pattern: %s' % (pattern.pattern))
     test.fail_test()
   else:
     found_file, found_archs = match.groups()
     if found_file != file or set(found_archs.split()) != set(archs):
-      print 'Expected file %s with arch %s, got %s with arch %s' % (
-          file, ' '.join(archs), found_file, found_archs)
+      print('Expected file %s with arch %s, got %s with arch %s' % (
+          file, ' '.join(archs), found_file, found_archs))
       test.fail_test()
 
 
 class XcodeInfo(object):
   """Simplify access to Xcode informations."""
 
   def __init__(self):
     self._cache = {}
 
   def _XcodeVersion(self):
@@ skipping 21 matching lines @@
 
   def SDKVersion(self):
     if 'SDKVersion' not in self._cache:
       self._cache['SDKVersion'] = subprocess.check_output(
           ['xcodebuild', '-version', '-sdk', '', 'SDKVersion'])
       self._cache['SDKVersion'] = self._cache['SDKVersion'].rstrip('\n')
     return self._cache['SDKVersion']
 
 
 Xcode = XcodeInfo()