Remove obsolete __future__ imports
Generators have been available since 2.3, "with" statements since 2.6.
.. -*- coding: utf-8 -*-
.. _Part4:
----------
Appendixes
----------
The following chapters are reference material.
.. toctree::
:maxdepth: 1
:numbered:
faq
rql/index
mercurial
depends
docstrings-conventions