Wheezy Captcha requires python version 2.4 to 2.7 or 3.2+. It is operating system independent. You can install it from the pypi site using setuptools (you need to specify an extra requirements per the imaging library of your choice):
$ easy_install wheezy.captcha
$ easy_install wheezy.captcha[PIL]
$ easy_install wheezy.captcha[Pillow]
If you are using virtualenv:
$ virtualenv env
$ env/bin/easy_install wheezy.captcha
You can get the source code using mercurial:
$ hg clone http://bitbucket.org/akorn/wheezy.captcha
$ cd wheezy.captcha
Prepare virtualenv environment in env directory
$ make env
... and run all tests:
$ make test
You can read how to compile from source code different versions of python in the article published on mind reference blog.
You can run certain make targets with a specific python version. Here we are going to run doctest with python3.2:
$ make env doctest-cover VERSION=3.2
Generate documentation with sphinx:
$ make doc
If you run into any issue or have comments, go ahead and add on bitbucket.