Add python_requires to setup.py
@@ -97,6 +97,7 @@ def get_setup_version(reponame):
setup_args.update(dict(
name='holoviews',
version=get_setup_version("holoviews"),
+ python_requires=">=2.7",
install_requires=install_requires,
extras_require=extras_require,
description='Stop plotting your data - annotate your data and let it visualize itself.',
