With the latest pylint version, an issue is raised by inheriting from
BaseInventoryPlugin, as the class has too many ancestors
(too-many-ancestors). This is caused by a class hierarchy that is too
deep, and is not under ansible-freeipa's control.
The bindings for requests and urllib3 might not be available, especially
in the ansible-test fake execution test (next version). These imports are
now in a try exception clause to make sure that the fake execution test
will be passing and also that there is a better error message if the
bindings are missing.
urllib3.exceptions.InsecureRequestWarning is now also only disabled if
no certificate has been given for the verification of the connection.
