- me._resolvers[host] = M.SelResolveByName \
- (host,
- lambda name, alias, addr:
- me._resolved(host, addr[0]),
- lambda: me._resolved(host, None))
+ if host not in me._resolvers:
+ me._resolvers[host] = M.SelResolveByName \
+ (host,
+ lambda name, alias, addr:
+ me._resolved(host, addr[0]),
+ lambda: me._resolved(host, None))