Python 3 compatibility

test/mac/gyptest-lto.py

 #!/usr/bin/env python
 
 # Copyright (c) 2015 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 LTO flags work.
 """
 
+from __future__ import print_function
+
 import TestGyp
 
 import os
 import re
 import subprocess
 import sys
 
 if sys.platform == 'darwin':
   test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
   CHDIR = 'lto'
@@ skipping 16 matching lines @@
 
   def ObjType(p, t_expected):
     r = re.compile(r'nsyms\s+(\d+)')
     o = subprocess.check_output(['file', p])
     objtype = 'unknown'
     if ': Mach-O ' in o:
       objtype = 'mach-o'
     elif ': LLVM bit-code ' in o:
       objtype = 'llvm'
     if objtype != t_expected:
-      print 'Expected %s, got %s' % (t_expected, objtype)
+      print('Expected %s, got %s' % (t_expected, objtype))
       test.fail_test()
 
   ObjType(ObjPath('cfile', 'lto'), 'llvm')
   ObjType(ObjPath('ccfile', 'lto'), 'llvm')
   ObjType(ObjPath('mfile', 'lto'), 'llvm')
   ObjType(ObjPath('mmfile', 'lto'), 'llvm')
   ObjType(ObjPath('asmfile', 'lto'), 'mach-o')
 
   ObjType(ObjPath('cfile', 'lto_static'), 'llvm')
   ObjType(ObjPath('ccfile', 'lto_static'), 'llvm')
   ObjType(ObjPath('mfile', 'lto_static'), 'llvm')
   ObjType(ObjPath('mmfile', 'lto_static'), 'llvm')
   ObjType(ObjPath('asmfile', 'lto_static'), 'mach-o')
 
   test.pass_test()
 
   # TODO: Probably test for -object_path_lto too, else dsymutil won't be
   # useful maybe?