Convert URL to screenshot (script)

Question

There is the URL of page on the Internet. I need to get a screenshot of this page (no matter in which browser).

I need a script (PHP, Python (even Django framework)) that receives the URL (string) and output screenshot-file at the exit (file gif, png, jpg).

UPD:

I need dynamically create a page where opposite to URL will be placed screenshot of the page with the same URL.

Answer 1

There is also http://webshot.mine.sk/ free with no limits, multiple APIs (js, jquery, php)