coding guide

* Are your changes python2.3 compatible? We are still trying

    >> to support 2.3, so avoid 2.4 only features like decorators
    >> until we remove 2.3 support

    > Good, I thought we were still restricted to 2.2!

I was wondering how long it would take for someone to notice that

I think we could lose python2.2 support if there is a good reason. Is
anyone still using it? I'll also post to the user's list. Perhaps in
the next release we should issue deprecation warnings for 2.2 and
encourage people to post to the list if they have an objection.
Typically with these things you don't see complaints until you take
something away.

We haven't been compiling 2.2 for windows for sometime now.