PIL

pytesser

pytesser needs tesseract engine

on Ubuntu u can install tesseract engine

(sudo) apt-get install tesseract-ocr

and

(sudo) pip install pytesser

PyTesser:

http://code.google.com/p/pytesser/

Tesseract:

http://code.google.com/p/tesseract-ocr/

The image must be enhanced the before feeding into the tesseract engine

Times of India's Download page ->

"http://epaper.timesofindia.com/epsignup/captcha.asptoken=0.498004082079339"

Simple way to break captcha!

This makes an output folder and the cracking probability can be found. Further more enhancement can bring in reallife possibility.