Python 3 compatibility

pylib/gyp/input_test.py

Index: pylib/gyp/input_test.py
diff --git a/pylib/gyp/input_test.py b/pylib/gyp/input_test.py
index 4234fbb8302eb9d74a93b751774d7d5ad17d9d2e..6c4b1cc5265c3719d571df3d09faf732df985d95 100755
--- a/pylib/gyp/input_test.py
+++ b/pylib/gyp/input_test.py
@@ -22,7 +22,7 @@ class TestFindCycles(unittest.TestCase):
     dependency.dependents.append(dependent)
 
   def test_no_cycle_empty_graph(self):
-    for label, node in self.nodes.iteritems():
+    for label, node in self.nodes.items():
       self.assertEquals([], node.FindCycles())
 
   def test_no_cycle_line(self):
@@ -30,7 +30,7 @@ class TestFindCycles(unittest.TestCase):
     self._create_dependency(self.nodes['b'], self.nodes['c'])
     self._create_dependency(self.nodes['c'], self.nodes['d'])
 
-    for label, node in self.nodes.iteritems():
+    for label, node in self.nodes.items():
       self.assertEquals([], node.FindCycles())
 
   def test_no_cycle_dag(self):
@@ -38,7 +38,7 @@ class TestFindCycles(unittest.TestCase):
     self._create_dependency(self.nodes['a'], self.nodes['c'])
     self._create_dependency(self.nodes['b'], self.nodes['c'])
 
-    for label, node in self.nodes.iteritems():
+    for label, node in self.nodes.items():
       self.assertEquals([], node.FindCycles())
 
   def test_cycle_self_reference(self):