Merge ~smoser/cloud-init:bug/silence-cheetah-userwarning into cloud-init:master

[Scott Moser]

[Scott Moser (smoser)]

This is what i don't like:

$ tox-venv py27 nosetests tests/unittests/
...................SSSSS............................................................................................................................................................................................................................................................................................................................................................../home/smoser-public/src/cloud-init/cloud-init/.tox/py27/local/lib/python2.7/site-packages/Cheetah/Compiler.py:1509: UserWarning:
You don't have the C version of NameMapper installed! I'm disabling Cheetah's useStackFrames option as it is painfully slow with the Python version of NameMapper. You should get a copy of Cheetah with the compiled C version of NameMapper.
  "\nYou don't have the C version of NameMapper installed! "
......................................................................................................................................................................................................................................................................................................................................................................................
----------------------------------------------------------------------
Ran 748 tests in 3.240s

OK (SKIP=5)

[Joshua Harlow (harlowja)]

review: Approve

diff --git a/tests/unittests/__init__.py b/tests/unittests/__init__.py
index e69de29..1b34b5a 100644
--- a/tests/unittests/__init__.py
+++ b/tests/unittests/__init__.py
@@ -0,0 +1,9 @@
+try:
+    # For test cases, avoid the following UserWarning to stderr:
+    # You don't have the C version of NameMapper installed ...
+    from Cheetah import NameMapper as _nm
+    _nm.C_VERSION = True
+except ImportError:
+    pass
+
+# vi: ts=4 expandtab