I was looking for a free api which can help me to get latitude/longitude on the basis of Postcode.

I tested pygeocoder and other api librearies which can help me, but none of them allowed me to query more than 25,000/day cause everyone is belongs to Google.

So I did an old school coding by using Mechanize and BeautifulSoup.

import mechanize
from bs4 import BeautifulSoup 

for x in xrange(30000):

    print '----------------- searching ---------------'
    br = mechanize.Browser()
    br.open("http://services.gisgraphy.com/public/geocoding.html")
    
    add = '81100'
    con='Malaysia'
    
    br.select_form(nr=0)
    
    br.form["address"] = add
    for i in range(0, len(br.find_control(type="checkbox").items)):
        br.find_control(type="checkbox").items[i].selected =True
    br.form["country"]=["MY"]
    
    print 'hitting --- ',x
    response = br.submit()
    soup = BeautifulSoup(response)
    
    
    links = soup.find_all('li')
    print '--------- getting list ----------'
    
    li = soup.find('div', {'class': 'summary'})
    
    print '---------- looking for latitude and longitude -------------'
    list= []
    children = li.findChildren()
    for child in children:
        list.append(str(child))

    print ' found latitude and longitude at point -->  ',x
    
    latitude = list[0]
    longitude = list[1]
    
    lat = latitude[9+5:len(latitude)-5].split()
    lng = longitude[9+6:len(longitude)-5].split()
    
    print str(lat).replace(',','.')
    print str(lng).replace(',','.')

#for f in br.forms():
#    print f

Source Code : https://bitbucket.org/ashish2py/quickhack/