Fix setup.py classifiers

arkindex/conf.py

@@ -35,6 +35,7 @@ class LocalConf(object):
     def read(self):
         """
         Read configuration data from the INI file.
+
         :return: A loaded ConfigParser.
         :rtype: configparser.ConfigParser
         """

setup.py

@@ -28,8 +28,13 @@ setup(
         "License :: OSI Approved :: MIT License",
         "Natural Language :: English",
         "Intended Audience :: Science/Research",
+        "Programming Language :: Python :: 2",
+        "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3 :: Only",
+        "Programming Language :: Python :: 3.4",
+        "Programming Language :: Python :: 3.5",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
         "Topic :: Scientific/Engineering :: Image Recognition",
         "Topic :: Text Processing :: Indexing",
         "Topic :: Text Processing :: Linguistic",