Require python >= 3.5

Prevent ourselves from being installable on python versions earlier than
what we support.

Reported-by: James Bottomley <James.Bottomley@hansenpartnership.com>
Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index 5944988..5b37505 100644
--- a/setup.py
+++ b/setup.py
@@ -31,6 +31,7 @@ setup(
     install_requires=[
         'requests'
     ],
+    python_requires='>=3.6',
     entry_points={
         'console_scripts': [
             'b4=b4.command:cmd'