自己弄的抓天气预报程序中用到的两个函数

import urllib2
import re
import sys
import string
def get(url1,boo):
      request = urllib2.Request(url1)
      opener = urllib2.build_opener()
      opener.addheaders = [("User-agent","Mozilla/5.0")]
      try:
        feeddata1 = opener.open(request).read()
        boo=True
        return feeddata1
      except urllib2.HTTPError,e:
        print "http erro code" ,e.code
        boo=False
        return
gethtmldata，抓网页的函数
import urllib2
import re
import sys
import string
import gethtmldata
def get(urlwea):
# print urlwea
    bo=True
    weadata=gethtmldata.get(urlwea,bo)
    if bo==False:
       print "getdata erro"
       sys.exit()
#request = urllib2.Request(urlwea)
#opener = urllib2.build_opener()
#opener.addheaders = [("User-agent","Mozilla/5.0")]
#weadata = opener.open(request).read()
    print "data get ok"
#f=open("data.html","w")
#print f,weadata
#f.close()
    deg_matches=re.findall(r"\d+\b&deg\b",weadata)
    wea_matches=re.findall(r"ALT.*TITLE",weadata)
    deglen=len(deg_matches)
    wealen=len(wea_matches)
    ii=0
    while iideglen:
# print deg_matches[ii]
      stringdeg=string.replace(deg_matches[ii],"&deg","")
      print stringdeg
      ii=ii+1
    ii=0
    while iiwealen:
# print wea_matches[ii]
      stringwea=string.replace(wea_matches[ii],'ALT="',"")
      stringtemp=string.replace(stringwea,'" TITLE',"")
      print stringtemp
      ii=ii+1
    return
正则表达式解出天气预报函数
用来抓取网页的天气预报并整理，算是自己写的第一个能用的东西

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