Package support in Python 2

[Michael Abbott]

Is there up to date documentation for package support in Python 2?

Section 6.11 of the "Python Reference Manual" has the following nice quote:

[XXX Can't be bothered to spell this out right now; see the URL 
http://www.python.org/doc/essays/packages.html for more details, also about 
how the module search works from inside a package.] 

and the referred URL documents Python 1.5.  I presume that nothing 
significant has changed recently, but it's certainly disconcerting for 
something as fundamental as module importing to not actually be part of the 
core language documentation!