From 463d626ba53e54160f350d84831e1877b24f4024 Mon Sep 17 00:00:00 2001
From: Barry Warsaw <barry@python.org>
Date: Wed, 21 Jan 2015 15:28:32 -0500
Subject: Only install cheetah (and only run the cheetah templating test) when
 in Python 2.  Cheetah is not compatible with Python 3.

---
 requirements.txt                   | 4 +++-
 setup.py                           | 7 ++++++-
 tests/unittests/test_templating.py | 4 ++++
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index 943dbef7..2a12ca3e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,6 @@
 # Pypi requirements for cloud-init to work
 
 # Used for untemplating any files or strings with parameters.
-cheetah
 jinja2
 
 # This is used for any pretty printing of tabular data.
@@ -32,3 +31,6 @@ requests
 
 # For patching pieces of cloud-config together
 jsonpatch
+
+# For Python 2/3 compatibility
+six
diff --git a/setup.py b/setup.py
index 507d5b25..e88d9e88 100755
--- a/setup.py
+++ b/setup.py
@@ -175,6 +175,11 @@ else:
     }
 
 
+requirements = read_requires()
+if sys.version_info < (3,):
+    requirements.append('cheetah')
+
+
 setuptools.setup(name='cloud-init',
       version=get_version(),
       description='EC2 initialisation magic',
@@ -187,6 +192,6 @@ setuptools.setup(name='cloud-init',
                ],
       license='GPLv3',
       data_files=data_files,
-      install_requires=read_requires(),
+      install_requires=requirements,
       cmdclass=cmdclass,
       )
diff --git a/tests/unittests/test_templating.py b/tests/unittests/test_templating.py
index 3ba4ed8a..957467f6 100644
--- a/tests/unittests/test_templating.py
+++ b/tests/unittests/test_templating.py
@@ -16,6 +16,9 @@
 #    You should have received a copy of the GNU General Public License
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import six
+import unittest
+
 from . import helpers as test_helpers
 import textwrap
 
@@ -38,6 +41,7 @@ class TestTemplates(test_helpers.TestCase):
         out_data = templater.basic_render(in_data, {'b': 2})
         self.assertEqual(expected_data.strip(), out_data)
 
+    @unittest.skipIf(six.PY3, 'Cheetah is not compatible with Python 3')
     def test_detection(self):
         blob = "## template:cheetah"
 
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