- More doctests.

- Updated TODO list.

README.rst

@@ -78,7 +78,7 @@ at: https://www.shore.co.il/git/.
 TODO
 ----
 
-- Add unit tests of filters using doctest.
+- Fix unicode strings in Python 2.7 only doctests in :code:`load_json`.
 - Fix combining dictionaries test.
 - Fix Travis CI test on Python 3.2 (https://travis-ci.org/adarnimrod/template/jobs/187388235).
 - Release on tagged commits to PyPI in Travis CI

template/filters.py

 #!/usr/bin/env python
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
 
 
 def to_yaml(value):
@@ -20,16 +22,51 @@ def to_yaml(value):
 
 
 def to_json(value):
+    '''
+    Converts given data structure to JSON form.
+    Examples:
+
+    >>> to_json([1,2,3])
+    '[1, 2, 3]'
+    >>> to_json({'b':2})
+    '{"b": 2}'
+    >>> to_json(2)
+    '2'
+    >>> to_json({1: {'a': [1,2,3]}})
+    '{"1": {"a": [1, 2, 3]}}'
+    '''
     from json import dumps
     return dumps(value)
 
 
 def from_json(value):
+    '''
+    Returns native data structure from the given JSON string.
+    Examples:
+
+    >>> from_json('[1, 2, 3]')
+    [1, 2, 3]
+    >>> from_json('"a"')
+    u'a'
+    >>> from_json('{"1": {"a": [1, 2, 3]}}')
+    {u'1': {u'a': [1, 2, 3]}}
+    '''
     from json import loads
     return loads(value)
 
 
 def from_yaml(value):
+    '''
+    Returns native data structure from the given YAML string.
+    Examples:
+
+    >>> from_yaml('a')
+    'a'
+    >>> from_yaml('[1, 2, 3]')
+    [1, 2, 3]
+    >>> from_yaml('{"1": {"a": [1, 2, 3]}}')
+    {'1': {'a': [1, 2, 3]}}
+    '''
     from yaml import safe_load
     return safe_load(value)