get content (html source) of an URL by HTTP POST method in Python

To retrieve or get content (html source) of an URL, sometimes we need to POST some values. Here I show you a sample python code that uses POST.

import urllib, urllib2, time

url = 'http://www.example.com' # write ur URL here

values = {'key1' : 'value1', #write ur specific key/value pair
          'key2' : 'value2',
          'key3' : 'value3',
          }

try:
    data = urllib.urlencode(values)          
    req = urllib2.Request(url, data)
    response = urllib2.urlopen(req)
    the_page = response.read() 
    print the_page 
except Exception, detail: 
    print "Err ", detail 

Hope it will be useful for you while writing web crawler/spider, specially where values must be submitted using HTTP POST method to get or extract content from an URL.

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