Created attachment 784433 [details]
Example ansible playbook to reproduce the issue

The firewalld module of ansible fails with "An exception occurred during task
execution. To see the full traceback, use -vvv. The error was: NameError:
global name 'fw_offline' is not defined". The patch from 
https://github.com/ansible/ansible/issues/38161 (backport for ansible 2.5) is
not sufficient. From my first analysis
/usr/lib/python2.7/site-packages/ansible/modules/system/firewalld.py tries
"import firewall.config" which fails because firewall.config is only available
for python3 (at least I cannot find it). I am attaching a simple example to
reproduce (ansible-playbook firewall.yml).

rpm -q ansible
ansible-2.5.1-lp150.1.1.noarch

cat /etc/os-release 
NAME="openSUSE Leap"
VERSION="15.0"
ID="opensuse-leap"
ID_LIKE="suse opensuse"
VERSION_ID="15.0"
PRETTY_NAME="openSUSE Leap 15.0"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:leap:15.0"
BUG_REPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://www.opensuse.org/"