Pyblosxom-aligunduz.org is a project mainly written in Python, it's free.
Source for http://aligunduz.org/blog
Configuration source for the http://aligunduz.org/blog running PyBlosxom
Licensed under Creative Commons Attribution-ShareAlike 3.0 hosted at http://creativecommons.org/licenses/by-sa/3.0/
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NOTE: I am running a slightly modified version of PyBlosxom 1.5rc2