PYTHON爬论坛信息求助

天冰

代码

from bs4 import BeautifulSoup
import urllib2
import urllib
import re
#获得网址
def geturl():
    url='XXXX'
    return url
#正则到链接列表
def  getcontent(url):
    request=urllib2.Request(url)
    response=urllib2.urlopen(request)
    content = response.read().decode('utf-8')
    pattern=re.compile('<span class="STab">.*?href="(.*?)" target=".*?" title=".*?">(.*?)</a>',re.S)
    contenturl=re.findall(pattern,content)
    return contenturl
#正则二级内容
def getcontent_2(content):
    for k,j in content:
        url=K
        request=urllib2.Request(url)
        response=urllib2.urlopen(request)
        content = response.read().decode('utf-8')
        soup = BeautifulSoup(content)
        print soup.select('a[href="XXXXX"]')   
#输出链接列表
def printindex():
    url=geturl()
    content=getcontent(url)
    content_2=getcontent_2(content)
printindex()

错误：global name 'K' is not defined

K不是全局变量，怎么改请人指导

SixPy

Python 初学者如何正确的提问。
http://bbs.fishc.com/thread-74332-1-1.html