Add classifiers

Author: hugovk

setup.py

@@ -33,6 +33,15 @@
           "Operating System :: Microsoft :: Windows",
           "Operating System :: POSIX",
           "Programming Language :: Python",
+          "Programming Language :: Python :: 2",
+          "Programming Language :: Python :: 2.7",
+          "Programming Language :: Python :: 3",
+          "Programming Language :: Python :: 3.3",
+          "Programming Language :: Python :: 3.4",
+          "Programming Language :: Python :: 3.5",
+          "Programming Language :: Python :: 3.6",
+          "Programming Language :: Python :: Implementation :: CPython",
+          "Programming Language :: Python :: Implementation :: PyPy",
           "Topic :: Software Development",
           ],
       )

unittests/test_hash.py

@@ -25,7 +25,7 @@ def test_types_hashes(self):
 
         """
 
-        if sys.version_info[:2] <= (2, 7):
+        if sys.version_info[:2] == (2, 7):
             # _create_type_t_mockup calls inspect.signature, which does not
             # exist for legacy Python
             return