python發送http請求

import httplib,urllib
from urlparse import urlparse
class NetUtil:
    errcode=''
    errmsg=''
    def http_get(self,url,timeout=5,is_https=False):
        domain=query_str=data=''
        o=urlparse(url)
        domain=o.netloc
        if ''!=o.path or ''!=o.query:
            query_str=o.path+'?'+o.query

        if is_https:
            conn=httplib.HTTPSConnection(domain,443,timeout)
        else:
            conn=httplib.HTTPConnection(domain,80,timeout)

        conn.request('GET',query_str)
        resp=conn.getresponse()
        status=resp.status
        if 200==status:
            data=resp.read()
        else:
            self.errcode=''
            self.errmsg='http response code(%s):%s' % (status,resp.reason)
            
        conn.close()
        return data
    
    def http_post(self,url,ps={},timeout=5,is_https=False):
        headers={"Content-type": "application/x-www-form-urlencoded","Accept": "text/plain"}
        domain=query_str=data=''
        o=urlparse(url)
        domain=o.netloc
        if ''!=o.path or ''!=o.query:
            query_str=o.path+'?'+o.query

        if is_https:
            conn=httplib.HTTPSConnection(domain,443,timeout)
        else:
            conn=httplib.HTTPConnection(domain,80,timeout)     
           
        ps=urllib.urlencode(ps)
        conn.request('POST',query_str,ps,headers)
        resp=conn.getresponse()
        status=resp.status
        if 200==status:
            data=resp.read()
        else:
            self.errcode=''
            self.errmsg='http response code(%s):%s' % (status,resp.reason)
            
        conn.close()
        return data

#http請求okcoin接口獲取LTC最新價格行情

url='https://www.okcoin.com/api/ticker.do?symbol=ltc_cny'
m=NetUtil()
resp=m.http_get(url)
if ''==resp:
    print m.errcode,m.errmsg
else:
    print resp