Revised Oct 3 2008: it's still Plone as the premier Python CMS so far ... still looking.

Python is an admirable language in almost every way ( but don't get me going about 'self' in method calls - if Smalltalk programmers see 'self' all over the code, they add $10 to their hourly rate, usually well deserved ).

At any rate, Python is an admirable language - it's pure OO, very fast, great libraries, etc. In short, superior technology. If that is true, then why are there so few Python Open Source CMS packages available in the CMS market ?

Updated Oct 29 2008: added Narval

A small but important segment of the rule engine world ... Python runs fast, a necessary requirement for all large rule-based applications.

Update Dec 13 20008: A few preliminary links ... and two new links on the Great Self Debate !

I remember a time not so very long ago when I was required to spend an afternoon adding "^yourself " to the end of several hundred Smalltalk methods because "that's the right way to do it". I predict that the use of self in Python method arguments will persist for much the same reason.