* Update module_utils.six to latest
We've been held back on the version of six we could use on the module
side to 1.4.x because of python-2.4 compatibility. Now that our minimum
is Python-2.6, we can update to the latest version of six in
module_utils and get rid of the second copy in lib/ansible/compat.
* Enable tests on python 3 for uri
* Added one more node type to SAFE_NODES into safe_eval module.
ast.USub represents unary operators. This is necessary for
parsing some unusual but still valid JSON files during testing
with Python 3.
There was code to support set literals (on Python 2.7 and newer), but it
was buggy: SAFE_NODES.union() doesn't modify SAFE_NODES in place,
instead it returns a new set object that is then silently discarded.
I added a unit test and fixed the code. I also changed the version
check to use sys.version_tuple instead of a string comparison, for
consistency with the subsequent Python 3.4 version check that I added in
the previous commit.
Two things changed in Python 3.4:
- 'basestring' is no longer defined, so use six.string_types
- True/False are now special AST node types (NamedConstant) rather than
just names
(Good thing we had tests, or I wouldn't have noticed the 2nd thing!)
I found only one place where safe_eval() is called inside the ansible
codebase: in lib/template/__init__.py. The call to safe_eval(result,
...) is protected by result.startswith('...'), which means result cannot
possibly be a byte string on Python 3 (or startswith() would raise, so
six.string_types (which excludes byte strings on Python 3) is fine here.
Dag Wieers
Toshio Kuratomi
Brian Coca
Lumír 'Frenzy' Balhar
Toshio Kuratomi
Marius Gedminas
James Cammarata