How can I import contacts of given email id/pwd from 

gmail
yahoo
hotmail 
etc

using python/django application. Please suggest?
Amir Hussain,
Yahoo mail using captcha, so it will not works for any scripts or service unless they have managed service with the help of a third party for captcha decoder. So u have to contact a service provider who provide managed service. 
As far as I know, Improsys is the first Address Grabber marketer and they have managed service. They have this tool available for Classic ASP, ASP.Net, .Net, Ruby on Rails, PHP, Cold Fusion, JAVA, JSP and Perl. Microsoft Outlook and Outlook Express. 
Actually I am using their service. Their service is satisfactory but the cost is too high.
how to import contacts from various services like gmail or yahoo using python/django