Using python on the web
tseaver at starbase.neosoft.com
Fri Apr 21 20:21:52 EDT 2000
In article <8dq9lj$pjg$2 at newshost.accu.uu.nl>,
Martijn Faassen <m.faassen at vet.uu.nl> wrote:
>Brent Fulgham <brent.fulgham at xpsystems.com> wrote:
>> A couple of questions:
>>> We build medium-busy, CGI-intensive sites in Python. We were briefly
>>> quite excited about Zope, but once we realized it locked us into Yet
>>> Another Programming Language, we lost interest. DHTML is particularly
>> 1. I'm not familiar with Zope. Is DHTML specific to Zope? It seems
>> to be proudly advertised on a lot of "webware" brochures I see these
>Acronym mixup. DHTML (Dynamic HTML) and DTML (Document Template Markup Language)
>have little in common besides that they both are used with HTML. DHTML is
>client side (in the browser), DTML server side (in Zope). DHTML is to do
>fancy graphics effects, DTML is a reporting language that talks to Zope
>(read Python) objects and usually generates HTML.
The closest cognate I know of to DTML in the non-Zope world is "server-side
includes," and their siblings. It is not a coincidence that Zope supports
three distinct DTML syntaxes:
* One based on Python "%"-substitution (the oldest, I think; almost nobody
uses this now);
* One using the same '<!--#...-->' style of syntax as SSI: this is
comfortable for developers used to SSI, but doesn't play nice with
* The now-dominant "pseudo-XML" style ('<dtml-var...>'), specifically
designed to be teachable to DreamWeaver, et al.
DTML is a "document template" language, logically equivalent to building
a document via Python string substituion, but with conditional and iterative
processing constructs added in. It is *not* adequate for doing "real"
programming, although many early Zope apps used it so, because it was
the only way to do logic "through-the-web."
Tres Seaver tseaver at digicool.com http://www.zope.org
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