I also think it's worth noting that the version of python-acme currently in Xenial has this same requirement on requests "security" extras: https://github.com/certbot/certbot/blob/v0.22.2/acme/setup.py#L21
I also think it's worth noting that the version of python-acme currently in Xenial has this same requirement on requests "security" extras: https:/ /github. com/certbot/ certbot/ blob/v0. 22.2/acme/ setup.py# L21