我正在尝试用Python编写一个函数来使用公共匿名代理并获取一个网页,但我得到了一个相当奇怪的错误。
代码(我有Python 2.4):
import urllib2
def get_source_html_proxy(url, pip, timeout):
# timeout in seconds (maximum number of seconds willing for the code to wait in
# case there is a proxy that is not working, then it gives up)
proxy_handler = urllib2.ProxyHandler({'http': pip})
opener = urllib2.build_opener(proxy_handler)
opener.addheaders = [('User-agent', 'Mozilla/5.0')]
urllib2.install_opener(opener)
req=urllib2.Request(url)
sock=urllib2.urlopen(req)
timp=0 # a counter that is going to measure the time until the result (webpage) is
# returned
while 1:
data = sock.read(1024)
timp=timp+1
if len(data) < 1024: break
timpLimita=50000000 * timeout
if timp==timpLimita: # 5 millions is about 1 second
break
if timp==timpLimita:
print IPul + ": Connection is working, but the webpage is fetched in more than 50 seconds. This proxy returns the following IP: " + str(data)
return str(data)
else:
print "This proxy " + IPul + "= good proxy. " + "It returns the following IP: " + str(data)
return str(data)
# Now, I call the function to test it for one single proxy (IP:port) that does not support user and password (a public high anonymity proxy)
#(I put a proxy that I know is working - slow, but is working)
rez=get_source_html_proxy("http://www.whatismyip.com/automation/n09230945.asp", "93.84.221.248:3128", 50)
print rez
错误:
追踪(最近一次呼叫最后一次):
文件“./public_html/cgi-bin/teste5.py”,第43行,在?
rez = get_source_html_proxy(“http://www.whatismyip.com/automation/n09230945.asp”,“xx.yy.zzz.ww:3128”,50)
文件“./public_html/cgi-bin/teste5.py”,第18行,在get_source_html_proxy中 袜子= urllib2.urlopen(REQ)
在urlopen中输入文件“/usr/lib64/python2.4/urllib2.py”,第130行 return _opener.open(url,data)
文件“/usr/lib64/python2.4/urllib2.py”,第358行,处于打开状态 response = self._open(req,data)
文件“/usr/lib64/python2.4/urllib2.py”,第376行,在_open中 '_open',req)
_call_chain中的文件“/usr/lib64/python2.4/urllib2.py”,第337行 result = func(* args)
文件“/usr/lib64/python2.4/urllib2.py”,第573行,in lambda r,proxy = url,type = type,meth = self.proxy_open:\
在proxy_open中输入文件“/usr/lib64/python2.4/urllib2.py”,第580行 如果主持人是'@': TypeError:需要可迭代的参数
我不知道为什么字符“@”是一个问题(我的代码中没有这个。我应该吗?)
提前感谢您的宝贵帮助。
答案 0 :(得分:3)
urllib2.build_opener获取处理程序的列表
opener = urllib2.build_opener([proxy_handler])
答案 1 :(得分:0)
@
本身就是一个红色的鲱鱼,追溯来自它正在尝试执行x in host
操作的事实,在这种情况下,这意味着host
必须是可迭代的(如一个字符串)。您需要检查host
的值,它是None
或数字,而不是您的意思。