Python 3 compatibility

test/variables/commands/commands.gyp

Index: test/variables/commands/commands.gyp
diff --git a/test/variables/commands/commands.gyp b/test/variables/commands/commands.gyp
index 78376edd9959cb3ecf69e2609b60a0050975e012..7d460b1810f6ab0ae2fd7e502e1285fc8626e01e 100644
--- a/test/variables/commands/commands.gyp
+++ b/test/variables/commands/commands.gyp
@@ -8,7 +8,7 @@
 
 {
   'variables': {
-    'pi': 'import math; print math.pi',
+    'pi': 'import math; print(math.pi)',

[Nico, 2016/07/29 22:22:06]

hmm doesn't this need an `from __future__ import print_function` too when
running gyp under python 2.7?

[AWhetter, 2016/11/05 23:59:50]

Nope. Using brackets is optional in Python 2.7.
test
test
Hello world
('Hello', 'world')

     'third_letters': "<(other_letters)HIJK",
     'letters_list': 'ABCD',
     'other_letters': '<(letters_list)EFG',
@@ -41,9 +41,9 @@
       'type': 'none',
       'variables': {
         'var1': '<!(["python", "-c", "<(pi)"])',
-        'var2': '<!(python -c "print \'<!(python -c "<(pi)") <(letters_list)\'")',
-        'var3': '<!(python -c "print \'<(letters_list)\'")',
-        'var4': '<(<!(python -c "print \'letters_list\'"))',
+        'var2': '<!(python -c "print(\'<!(python -c "<(pi)") <(letters_list)\')")',
+        'var3': '<!(python -c "print(\'<(letters_list)\')")',
+        'var4': '<(<!(python -c "print(\'letters_list\')"))',
         'var5': 'letters_',
         'var6': 'list',
         'var7': '<(check_int)',