Drop support of Python 2.6.

.travis.yml

@@ -1,6 +1,5 @@
 language: python
 python:
-    - 2.6
     - 2.7
 install:
     - python bootstrap.py

CHANGES.txt

@@ -7,6 +7,7 @@ Changes
 - In the template directory grokker, ignore directories and files
   without extensions.
 
+- Drop support of Python 2.6.
 
 2.10.2 (2016-02-02)
 -------------------

src/grokcore/view/tests/test_all.py

@@ -13,22 +13,6 @@
 optionflags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS
 
 
-def getlines(self, filename, module_globals=None):
-    # Patch patch for python 2.6 to prevent a UnicodeDecodeError.
-    m = self._DocTestRunner__LINECACHE_FILENAME_RE.match(filename)
-    if m and m.group('name') == self.test.name:
-        example = self.test.examples[int(m.group('examplenum'))]
-        source = example.source
-        if isinstance(source, unicode):
-            source = source.encode('ascii', 'backslashreplace')
-        return source.splitlines(True)
-    else:
-        return self.save_linecache_getlines(filename, module_globals)
-
-
-doctest.DocTestRunner._DocTestRunner__patched_linecache_getlines = getlines
-
-
 def setUp(test):
     zope.component.eventtesting.setUp(test)
     file_template_registry.ignore_templates('.svn')