Разбор ответа на POST запрос

import urllib2
import urllib
site = 'http://zakupki.gov.ru/epz/order/quicksearch/search.html'
headers = {'User-Agent' : 'Mozilla/5.0 (Windows NT 6.3; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0'}
values = {
'searchString' : '',
'&morphology' : 'on',
'&pageNumber' : '1',
'&sortDirection' : 'false',
'&recordsPerPage' : '_10',
'&showLotsInfoHidden' : 'false',
'&fz44' : 'on',
'&fz223' : 'on',
'&af' : 'on',
'&ca' : 'on',
'&regions' : '',
'&priceFrom' : '0',
'&priceTo' : '200000000000',
'&currencyId' : '1',
'&publishDateFrom' : '',
'&publishDateTo' :  '',
'&updateDateFrom' : '',
'&updateDateTo' : '',
'&sortBy' : 'UPDATE_DATE'}
data = urllib.urlencode(values)
req = urllib2.Request(site, data, headers)
response = urllib2.urlopen(req)
s = response.read()
print (s)

import urllib2
from bs4 import BeautifulSoup
 
res = urllib2.urlopen('file:///C:/Users/maxim/PycharmProjects/untitled4/1.html')
 
soup = BeautifulSoup(res)
"""for row in soup.find_all("dt"):"""
for href_tags in soup.findAll(name ='a', attrs =dict(target='_blank')):
    print href_tags.contents

import urllib2
from bs4 import BeautifulSoup
 
res = urllib2.urlopen('file:///C:/Users/maxim/PycharmProjects/untitled4/1.html')
 
soup = BeautifulSoup(res)
"""for row in soup.find_all("dt"):"""
for href_tags in soup.findAll(name ='a', attrs =dict(target='_blank')):
    print href_tags.contents[0]

data = urllib.parse.urlencode(query_args)
data = data.encode('ascii') # data should be bytes
req = urllib.request.Request(url, data, headers)
with urllib.request.urlopen(req) as response:
   the_page = response.read()