Updated from global requirements

Change-Id: Id5a731fafc47319159795c558280e9cb6154bf2b

setup.py

@@ -1,5 +1,4 @@
-#!/usr/bin/env python
-# Copyright (c) 2016 Internap Inc.
+# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,8 +14,16 @@
 # limitations under the License.
 
 # THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
-
 import setuptools
 
-setuptools.setup(setup_requires=['pbr'],
-                 pbr=True)
+# In python < 2.7.4, a lazy loading of package `pbr` will break
+# setuptools if some other modules registered functions in `atexit`.
+# solution from: http://bugs.python.org/issue15881#msg170215
+try:
+    import multiprocessing  # noqa
+except ImportError:
+    pass
+
+setuptools.setup(
+    setup_requires=['pbr>=2.0.0'],
+    pbr=True)