Drop support for Python 2.6

CHANGES.rst

@@ -1,3 +1,8 @@
+3.0
+~~~
+
+* Dropped support for Python 2.6 and 3.1.
+
 2.12.2
 ~~~~~~
 

setup.py

@@ -30,7 +30,7 @@
 		else []
 	),
 	py_modules=['ptr'],
-	python_requires='>=2.6',
+	python_requires='>=2.7,!=3.0,!=3.1',
 	install_requires=[
 	],
 	extras_require={
@@ -40,10 +40,6 @@
 			'collective.checkdocs',
 			'pytest-virtualenv',
 		],
-		'testing:python_version=="2.6"': [
-			# undeclared dependency of pytest-virtualenv
-			'importlib',
-		],
 		'docs': [
 			'sphinx',
 			'jaraco.packaging>=3.2',
@@ -57,7 +53,6 @@
 		"Development Status :: 5 - Production/Stable",
 		"Intended Audience :: Developers",
 		"License :: OSI Approved :: MIT License",
-		"Programming Language :: Python :: 2.6",
 		"Programming Language :: Python :: 2.7",
 		"Programming Language :: Python :: 3",
 		"Framework :: Pytest",

tests/test_ptr.py

@@ -1,6 +1,5 @@
 from __future__ import unicode_literals
 
-import contextlib
 import io
 import os
 import shutil
@@ -17,26 +16,13 @@ def DALS(s):
     return textwrap.dedent(s).lstrip()
 
 
-def _tarfile_open_ex(*args, **kwargs):
-    """
-    Extend result as a context manager.
-    """
-    return contextlib.closing(tarfile.open(*args, **kwargs))
-
-
-if sys.version_info[:2] < (2, 7) or (3, 0) <= sys.version_info[:2] < (3, 2):
-    tarfile_open = _tarfile_open_ex
-else:
-    tarfile_open = tarfile.open
-
-
 def make_sdist(dist_path, files):
     """
     Create a simple sdist tarball at dist_path, containing the files
     listed in ``files`` as ``(filename, content)`` tuples.
     """
 
-    with tarfile_open(dist_path, 'w:gz') as dist:
+    with tarfile.open(dist_path, 'w:gz') as dist:
         for filename, content in files:
             file_bytes = io.BytesIO(content.encode('utf-8'))
             file_info = tarfile.TarInfo(name=filename)