Resolving differences in core modules post-merge

lib/ansible/modules/cloud/openstack/_quantum_router_interface.py

@@ -22,6 +22,7 @@ try:
     except ImportError:
         from quantumclient.quantum import client
     from keystoneclient.v2_0 import client as ksclient
+    HAVE_DEPS = True
 except ImportError:
     HAVE_DEPS = False
 
@@ -84,7 +85,10 @@ options:
         - Name of the tenant whose subnet has to be attached.
      required: false
      default: None
-requirements: ["quantumclient", "keystoneclient"]
+requirements:
+    - "python >= 2.6"
+    - "python-neutronclient or python-quantumclient"
+    - "python-keystoneclient"
 '''
 
 EXAMPLES = '''
@@ -224,6 +228,8 @@ def main():
             state                           = dict(default='present', choices=['absent', 'present']),
     ))
     module = AnsibleModule(argument_spec=argument_spec)
+    if not HAVE_DEPS:
+        module.fail_json(msg='python-keystoneclient and either python-neutronclient or python-quantumclient are required')
 
     neutron = _get_neutron_client(module, module.params)
     _set_tenant_id(module)
@@ -253,5 +259,6 @@ def main():
 # this is magic, see lib/ansible/module.params['common.py
 from ansible.module_utils.basic import *
 from ansible.module_utils.openstack import *
-main()
+if __name__ == '__main__':
+    main()