1 files changed, 1 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 305ca2ab0..ebde99c7b 100644
--- a/setup.py
+++ b/setup.py
@@ -222,6 +222,7 @@ setup(
             'build_sphinx = sphinx.setup_command:BuildDoc',
         ],
     },
+    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
     install_requires=install_requires,
     extras_require=extras_require,
     cmdclass=cmdclass,