python定时器+；urllib2代码错误

我试图每5秒钟从一个站点中提取信息，但它似乎不起作用，每次运行时都会出错

代码如下：

import urllib2, threading
def readpage():
    data = urllib2.urlopen('http://forums.zybez.net/runescape-2007-prices').read()
    for line in data:
        if 'forums.zybez.net/runescape-2007-prices/player/' in line:
            a = line.split('/runescape-2007-prices/player/'[1])
            print(a.split('">')[0])

t = threading.Timer(5.0, readpage)
t.start()

我发现以下错误：

Exception in thread Thread-1:
Traceback (most recent call last):
  File "C:\Python27\lib\threading.py", line 808, in __bootstrap_inner
    self.run()
  File "C:\Python27\lib\threading.py", line 1080, in run
    self.function(*self.args, **self.kwargs)
  File "C:\Users\Jordan\Desktop\username.py", line 3, in readpage
    data = urllib2.urlopen('http://forums.zybez.net/runescape-2007-prices').rea
()
  File "C:\Python27\lib\urllib2.py", line 127, in urlopen
    return _opener.open(url, data, timeout)
  File "C:\Python27\lib\urllib2.py", line 410, in open
    response = meth(req, response)
  File "C:\Python27\lib\urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "C:\Python27\lib\urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "C:\Python27\lib\urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "C:\Python27\lib\urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 403: Forbidden

---

非常感谢您的帮助，谢谢

您是否尝试在没有线程的情况下打开该url？错误代码为403：禁止，可能您需要对该网页进行身份验证。

这与Python无关——服务器拒绝您对该URL的请求

我怀疑要么URL不正确，要么你达到了某种速率限制，被阻止了

编辑：如何让它工作 该站点正在阻止Python的

用户代理

。试试这个：

import urllib2, threading
def readpage():

    headers = { 'User-Agent' : 'Mozilla/5.0' }
    req = urllib2.Request('http://forums.zybez.net/runescape-2007-prices', None, headers)
    data = urllib2.urlopen(req).read()

    for line in data:
        if 'forums.zybez.net/runescape-2007-prices/player/' in line:
            a = line.split('/runescape-2007-prices/player/'[1])
            print(a.split('">')[0])

---

站点拒绝urllib2报告的默认用户代理。您可以使用install_opener为脚本中的所有请求更改它

opener = urllib2.build_opener()
opener.addheaders = [('User-agent', 'Mozilla/5.0 (X11; Linux i686; rv:5.0) Gecko/20100101 Firefox/5.0')]
urllib2.install_opener(opener)

您还需要按站点拆分数据，以便逐行读取

urllib2.urlopen('http://forums.zybez.net/runescape-2007-prices').read().splitlines()

改变

line.split('/runescape-2007-prices/player/'[1])

到

工作：

import urllib2, threading

opener = urllib2.build_opener()
opener.addheaders = [('User-agent', 'Mozilla/5.0 (X11; Linux i686; rv:5.0) Gecko/20100101 Firefox/5.0')]
urllib2.install_opener(opener)

def readpage():
    data = urllib2.urlopen('http://forums.zybez.net/runescape-2007-prices').read().splitlines()
    for line in data:
        if 'forums.zybez.net/runescape-2007-prices/player/' in line:
            a = line.split('/runescape-2007-prices/player/')[1]
            print(a.split('">')[0])

t = threading.Timer(5.0, readpage)
t.start()

---

如果你是这个意思的话，我可以继续使用我的浏览器。这很奇怪，因为我可以继续使用我的浏览器。似乎不再抛出任何错误，尽管它似乎根本没有打印出任何行。我也尝试过只打印每一行而不拆分它或任何东西，但结果仍然相同。如果我打印返回的数据，对我来说它看起来像一个有效的网站。您确定要获取的内容在那里吗？是的，请检查页面源代码。加载数据也可以通过以下一行实现：

data=urllib2.urlopen（urllib2.Request（'http://forums.zybez.net/runescape-2007-prices，headers={'User-Agent'：'Mozilla/5.0（X11；U；Linux i686）Gecko/20071127 Firefox/2.0.0.11'}）

谢谢，尽管我在尝试打印a.split（“>”）[0]时出错，因为它显然是一个列表。我还尝试使它每5秒循环一次并打印新数据，但我得到了线程。错误：“无法启动新线程”

import urllib2, threading

opener = urllib2.build_opener()
opener.addheaders = [('User-agent', 'Mozilla/5.0 (X11; Linux i686; rv:5.0) Gecko/20100101 Firefox/5.0')]
urllib2.install_opener(opener)

def readpage():
    data = urllib2.urlopen('http://forums.zybez.net/runescape-2007-prices').read().splitlines()
    for line in data:
        if 'forums.zybez.net/runescape-2007-prices/player/' in line:
            a = line.split('/runescape-2007-prices/player/')[1]
            print(a.split('">')[0])

t = threading.Timer(5.0, readpage)
t.start()