Question

我的主要课程类似

# file bmdaemon.py
from txjsonrpc.web import jsonrpc
from twisted.web import server, xmlrpc
from twisted.internet import reactor, defer, threads, task
import xmlrpclib
from txjsonrpc.web.jsonrpc import Proxy


class BMDaemon(jsonrpc.JSONRPC):
    # class definition


class XmlRpcInterface(xmlrpc.XMLRPC):
     # class definition


if __name__ == "__main__":
    try:
        bm_daemon = BMDaemon()
        xml_interface = XmlRpcInterface()
        portJSONRPC = bm_daemon.get_listeningJSON_port()
        portXMLRPC = bm_daemon.get_listeningXML_port()
        reactor.listenTCP(portJSONRPC, server.Site(bm_daemon))
        reactor.listenTCP(portXMLRPC, server.Site(xml_interface))
        reactor.run()
    except KeyboardInterrupt:
        print "MAIN: ^C received, exiting."

我只是尝试在外层捕捉CTRL+C，即“主要”执行。

但是，发送上述键盘中断只会打印

<< prints from BMDaemon >>
^CUnhandled error in Deferred:
Unhandled Error
Traceback (most recent call last):
  File "bmdaemon.py", line 562, in <module>
    bm_daemon = BMDaemon()
  File "bmdaemon.py", line 114, in __init__
    << some line >>
  File "/usr/lib/python2.7/dist-packages/twisted/internet/task.py", line 170, in start
    self()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/task.py", line 215, in __call__
    d = defer.maybeDeferred(self.f, *self.a, **self.kw)
--- <exception caught here> ---
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 134, in maybeDeferred
    result = f(*args, **kw)
  File "bmdaemon.py", line 519, in __registration
    << some line >>
  File "/usr/lib/python2.7/commands.py", line 60, in getstatusoutput
    text = pipe.read()
exceptions.KeyboardInterrupt: 
<< prints from XmlRpcInterface >>

换句话说，我没有收到请求的错误！请耐心等待，因为我来自Java环境，这样的情况会更加清晰。

Answer 1

你试过一个最小的例子吗？像这样：

import time
def sleeper():
    while(True):
        print "So sleepy"
        time.sleep(1)

try:
    sleeper()
except KeyboardInterrupt:
    print "Ctrl-C"

这适合我（因为我认为你打算这样做）。（我知道这更像是评论，但我无法让代码显示正确）

Python扭曲没有捕获异常

1 个答案: