Question

我有一个程序，我需要活动（运行）大约一个星期。

该程序侦听网站的Feed，并根据收到的每个信号决定做什么。但是，我注意到程序暂停（在运行大约8小时后停止没有错误或标志）并且直到ctrl + c并重新启动才会恢复。鉴于python脚本可以运行的时间没有限制，我如何确保我的程序重新启动，比如每五个小时重启一次，这样我可以确保它不会停止工作？

我的程序使用import requests及其类连接到REST API提要。

以下是侦听Feed的程序的一部分。

def connect():
    domain = 'x'
    access_token = 'x'
    account_id = 'x'
    instruments = 'x'

    try:
        # Tries to connect, if unsuccessful it will close the connection.
        s = requests.Session()
        url = "https://" + domain + "/v1/prices"
        headers = {'Authorization': 'Bearer ' + access_token, }
        params = {'instruments': instruments, 'accountId' : account_id}
        req = requests.Request('GET', url, headers=headers, params=params)
        pre = req.prepare()
        resp = s.send(pre, stream=True, verify=True)
        return resp
    except Exception as e:
        s.close()
        print "Caught exception when connecting to stream\n" + str(e)


def demo(display_heartbeat):
    response = connect()
    if response.status_code != 200:
        print response.text
        return
    for line in response.iter_lines(1):
        if line:
            try:
                msg = json.loads(line)
            except Exception as e:
                print "Caught exception when converting message into json\n" + str(e)
                return

            if display_heartbeat:
                print line
            else:
                if msg.has_key("instrument") or msg.has_key("tick"):
                    parser.json_parser(msg)


def main():
    usage = "usage: %prog [options]"
    parser = OptionParser(usage)
    parser.add_option("-b", "--displayHeartBeat", dest="verbose", action="store_true",
                      help="Display HeartBeat in streaming data")
    display_heartbeat = False
    (options, args) = parser.parse_args()
    if len(args) > 1:
        parser.error("incorrect number of arguments")
    if options.verbose:
        display_heartbeat = True
    demo(display_heartbeat)

if __name__ == "__main__":
    main()

如何每隔几个小时自动（永远）重新启动程序？

0 个答案: