Python 3 compatibility

test/mac/gyptest-swift-library.py

 #!/usr/bin/env python
 
 # 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.
 
 """
 Verifies that a swift framework builds correctly.
 """
 
+from __future__ import print_function
+
 import TestGyp
 import TestMac
 
 import collections
 import sys
 import subprocess
 
 if sys.platform == 'darwin':
-  print "This test is currently disabled: https://crbug.com/483696."
+  print("This test is currently disabled: https://crbug.com/483696.")
   sys.exit(0)
 
   test = TestGyp.TestGyp(formats=['xcode'])
 
   # Ensures that the given symbol is present in the given file, by running nm.
   def CheckHasSymbolName(path, symbol):
     output = subprocess.check_output(['nm', '-j', path])
     idx = output.find(symbol)
     if idx == -1:
-      print 'Swift: Could not find symobl: %s' % symbol
+      print('Swift: Could not find symobl: %s' % symbol)
       test.fail_test()
 
   test_cases = []
 
   # Run this for iOS on XCode 6.0 or greater
   if TestMac.Xcode.Version() >= '0600':
     test_cases.append(('Default', 'iphoneos'))
     test_cases.append(('Default', 'iphonesimulator'))
 
   # Run it for Mac on XCode 6.1 or greater
@@ skipping 16 matching lines @@
     filename = 'SwiftFramework.framework/SwiftFramework'
     result_file = test.built_file_path(filename, chdir='swift-library')
 
     test.must_exist(result_file)
 
     # Check to make sure that our swift class (GypSwiftTest) is present in the
     # built binary
     CheckHasSymbolName(result_file, "C14SwiftFramework12GypSwiftTest")
 
   test.pass_test()