BGPSpeaker: Fix BGP state string conversion
The constants BGP_FSM_* are str type values and not callable.
@@ -2000,8 +2000,8 @@ class Peer(Source, Sink, NeighborConfListener, Activity):
# Open/Notification messages are currently handled by protocol and
# nothing is done inside peer, so should not see them here.
raise ValueError('Peer does not support handling of %s'
- ' message during % state' %
- (msg, self.state.bgp_state()))
+ ' message during %s state' %
+ (msg, self.state.bgp_state))
def _handle_err_sor_msg(self, afi, safi):
# Check if ERR capability is enabled for this peer.
