Update setup.py

Author: dcherian

setup.py

@@ -67,13 +67,10 @@ def _rm_walk(self):
       tests_require=['pytest', 'numpy', 'numba'],
       classifiers=['Development Status :: 4 - Beta',
                    'Intended Audience :: Science/Research',
-                   'Programming Language :: Python :: 2',
-                   'Programming Language :: Python :: 2.7',
-                   'Programming Language :: Python :: 3',
-                   'Programming Language :: Python :: 3.4',
-                   'Programming Language :: Python :: 3.5',
-                   'Programming Language :: Python :: 3.6',
                    'Programming Language :: Python :: 3.7',
+                   'Programming Language :: Python :: 3.8',
+                   'Programming Language :: Python :: 3.9',
+                   'Programming Language :: Python :: 3.10',
                    ],
       cmdclass=dict(clean=NumpyGroupiesClean, **versioneer.get_cmdclass()),
 )