A clone of Obtvse.
The point of Simple is to be simple. The blog is 1 file (excluding resources) with a few simple pure-python dependancies, it doesn't require a database server, has a small footprint and is fairly fast.
Its quite simple. Go download Python 2.7+, Flask, Sqlalchemy and flask-sqlalchemy and you are good to go. To create a settings file run create_config.py and enter some details, then run simple.py.
You can see my blog running this software here.