関連ワード:  python error 111 connection refused    python errno 111 connection refused    python connectionrefusederror errno 111 connection refused    python socket errno 111 connection refused    python requests errno 111 connection refused    python urlopen error errno 111 connection refused    python socket.error errno 111 connection refused    python smtplib errno 111 connection refused    python socket connectionrefusederror errno 111 connection refused    python requests connectionrefusederror errno 111 connection refused