Twisted and Divmod: A Cheater's Setup Guide

I've been helping a few folks out on IRC lately. They've wanted to know how to setup Twisted and Divmod without doing any installs, running directly from SVN. They've been in luck, because that's actually how we develop at Divmod :-)

Here are the Cliff Notes (this stuff is available on the wikis, but it's spread out):

Install the dependencies:

pycrypto 2.0
SQLite 3.2.1
PySQLite 2.0
PyTZ 2005m-1
PIL 1.1.6

Get the Divmod code first (we'll get Twisted next):

mkdir ~/lab
cd ~/lab
svn co http://divmod.org/svn/Divmod/trunk Divmod/trunk

Set the Combinator env vars (if you want to persist this, then you'll need to put it in your .profile or shell .rc file):

eval `python ~/lab/Divmod/trunk/Combinator/environment.py`

Have Combinator start "tracking" Divmod and Twisted, thus managing PYTHONPATH for them (note that chbranch will detect that Twisted has not been checked out and will do so automatically):

chbranch Divmod trunk
chbranch Twisted trunk svn://svn.twistedmatrix.com/svn/Twisted/trunk

Get the new project dirs into the env:

eval `python ~/lab/Divmod/trunk/Combinator/environment.py`

Executing the whbranch command should give you the following:

Divmod: trunk
Twisted: trunk

If you start up a Python interpreter, you'll be able to import from twisted, mantissa, axiom, etc.

Update: the instructions have been edited and shortened, thanks to insight from Glyph.