Python/Zope or better PHP4

[Martin Bachmann]

We're currently developping our web applications in PHP for use with 
Apache/mod_php. This works great and PHP4 seems to bring lots of 
improvements. 

However, we're looking for an integrated, object-oriented development frame 
with some security concepts, so Zope came to our view.

My question now, does anyone here have experience with both PHP and Zope? 
Would it be worth take the effort to change to Zope? What about 
advantages/disadvantages? How well does Python work as a web programming 
language compared to PHP (which was designed right from the start for this 
purpose) ?

Thanks for any comments and views,
Martin