1. Install python 2.X
1.1 Mechenize requires python 2.X
2. Install mechanize
2.1 Linux:
run the command:
$ sudo pip install mechanize
2.2 Windows: download mechanize from http://wwwsearch.sourceforge.net/mechanize/src/mechanize-0.2.5.zip
unpack
access the folder from command prompt
run the command:
python setup.py install
3. Not tested with captcha.