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我的程序在随机阶段关闭时遇到问题，不知道为什么。

起初，我以为是因为它出现错误，但我添加了一个错误句柄。仍然由于某种原因，它只是在运行几天后关闭并且没有显示错误。下面的代码

import requests
import lxml.html as lh
import sys
import time
from clint.textui import puts, colored

API_URL = "http://urgmsg.net/livenosaas/ajax/update.php"

class Scraper (object):
    id_stamp = 0

    def __init__(self, timeout, recent_messages=True):
        self.timeout = timeout
        self.handlers = []
        self.recent_messages = recent_messages

    def register_handler(self, handler):
        self.handlers.append(handler)
        return handler

    def scrape(self):
        try:
            resp = requests.get(API_URL, params={'f': self.id_stamp}).json()
        except requests.exceptions.ConnectionError as e:
            puts("Error encountered when connecting to urgmsg: ", newline=False)
            puts(colored.red(e.__class__.__name__), newline=False)
            puts(" " + e.message)
            return

        if not resp['updated']:
            return

        old_id_stamp = self.id_stamp
        self.id_stamp = resp['IDstamp']
        # if old_id_stamp is 0, this is the first scrape
        # which will return a whole bunch of recent past messages
        if not self.recent_messages and old_id_stamp == 0: return

        # Pager messages are returned newest to oldest, we want to
        # process them oldest to newest
        frags = lh.fragments_fromstring(resp['data'])[::-1]
        for frag in frags:
            msg = PagerMessage(frag)
            for handler in self.handlers:
                handler(msg)

    def run(self):
        while True:
            self.scrape()
            time.sleep(self.timeout)

class PagerMessage:
    def __init__(self, fragment):
        children = fragment.getchildren()
        self.datetime = children[0].text
        self.text = children[1].text
        # channel starts with `- `
        self.channel = children[1].getchildren()[0].text[2:]
        self.response = 'CFSRES' in self.text
    def __str__(self):
        return "{} [{}]: {}".format(self.channel, self.datetime, self.text)

if __name__ == "__main__":
    scraper = Scraper(5)
    @scraper.register_handler
    def handler(msg):
        puts(colored.yellow(msg.channel), newline=False)
        puts(" [", newline=False)
        puts(colored.green(msg.datetime), newline=False)
        puts("] ", newline=False)
        if msg.response:
            puts(colored.red(msg.text))
        else:
            puts(msg.text)
    scraper.run()

我把这部分弄错了吗？

except requests.exceptions.ConnectionError as e:
                puts("Error encountered when connecting to urgmsg: ", newline=False)
                puts(colored.red(e.__class__.__name__), newline=False)
                puts(" " + e.message)
                return
4

1 回答 1

1

正如@sobolevn 所建议的改变

except: as e:
                puts("Error encountered", newline=False)
                puts(colored.red(e.__class__.__name__), newline=False)
                puts(" " + e.message)
                return
于 2015-06-14T08:20:32.870 回答