Python 中止后无限循环

我有这个代码：

class LogDigger:

    @staticmethod
    def RunInfiniteLoopSyslog():
        while True:
            line = LogDigger.syslog_p.stdout.readline()
            Utils.log("New line in syslog: %s" % line.rstrip('\n'))

    @staticmethod
    def RunInfiniteLoopXlog():
        while True:
            line = LogDigger.xlog_p.stdout.readline()
            Utils.log("New line in xlog: %s" % line.rstrip('\n'))

    @staticmethod
    def StartProcesses():

        LogDigger.syslog_p = subprocess.Popen(['tail', '-f', '-n0', '/var/log/syslog'], shell=False, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        LogDigger.xlog_p = subprocess.Popen(['tail', '-f', '-n0', '/var/log/mail-xlog'], shell=False, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)

        syslog_thread = threading.Thread(target = LogDigger.RunInfiniteLoopSyslog)
        xlog_thread = threading.Thread(target = LogDigger.RunInfiniteLoopXlog)

        syslog_thread.start()
        xlog_thread.start()  

问题是，当我按 ctrl+c 中止程序时，它立即跳入“xlog/syslog 中的新行”的无限循环。你看到问题了吗？ ：/我需要添加一些代码，这可能也会中止这两个线程。

扩展 Fantasizer 所说的内容，尝试下面的代码：

while True:
    try:
        print('running')
    except KeyboardInterrupt:
        print('stop')
        exit(0)