smtp.py 文件源码

def close(self):
        """Closes the connection to the email server."""
        if self.connection is None:
            return
        try:
            try:
                self.connection.quit()
            except (ssl.SSLError, smtplib.SMTPServerDisconnected):
                # This happens when calling quit() on a TLS connection
                # sometimes, or when the connection was already disconnected
                # by the server.
                self.connection.close()
            except smtplib.SMTPException:
                if self.fail_silently:
                    return
                raise
        finally:
            self.connection = None