Write web apps in Python?

Bruno Desthuilliers bruno.42.desthuilliers at websiteburo.invalid
Wed Apr 21 10:28:59 CEST 2010


Bryan a écrit :
> 
> I think I see what you mean

Err...

> -- correct me if I'm wrong: 

You are, sorry !-)

> You want to
> keep complex application data structures around between requests.

Nope. I want to keep all my settings parsed, my librairies loaded, all 
my connections opened etc. That is, all the time consuming stuff at app 
startup - which, with PHP, mostly happens for each and every request.

>>> PHP frameworks generally allow and encourage application code
>>> to be independent of the underlying plumbing.
>> This is debatable at best. PHP code (except cli PHP code of course) is
>> written without any care for persistent global state, concurrency
>> issues, race conditions etc - because it's written with the idea that
>> the code serving a request will be runned in total isolation. CGI
>> heritage here, obviously.
> 
> No, that's good web-app structure, regardless of language and server
> interface. If we keep persistent global state in a shared database
> rather than program variables,

Err... Did you really read what you're answering too ???

Also, I never said this execution model was necessarily bad - just that 
it had pros *and* cons.

>> And please note I'm not criticizing this
>> design- just pointing one of it's consequences.
>>
>>> Many large,
>>> sophisticated, high-volume web apps are in PHP.
>> Did anyone pretend otherwise ?
> 
> How about this howler: "The PHP execution model (mostly based on CGI
> FWIW) tends to be a bit unpractical for non-trivial applications".

"tends to be a bit unpractical" != "doesn't work".

Many large, sopĥisticated etc applications are written in C. Does that 
make C a practical application programming language ?

Now I'm sorry to say that for quite a few "sophisticated" PHP apps I've 
seen (and eventually had to work on), the "startup" part - parsing the 
include files, configuration, establishing connections etc - took a good 
part of the total processing time.



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