[Chicago] help from Django and Pylons developers

[Massimo Di Pierro]

Thank you Ian,

I think I incorporated almost all of your suggestions too although I  
do not think that using FileApp for streaming is quite as easy as the  
web2py.

I have never a Pylons example for connecting to multiple databases.  
Would you mind posting an example?

About bytecode compilation. Send me a working Pylons bytecode  
compiled application (including bytecode compiled models, views and  
controllers) and the step you took to make it and I will believe you.

Yes all bytecode compiled code can be decompiled (this is true for  
Java and ASP as well) but for some people it is important. In the  
case of web2py there are two reasons for it: 1) speed, there is no  
more template parsing with bytecode compiled apps, 2) you are not  
explicitly giving away the source code (if you decompile you do not  
get exactly the same original code).

Massimo

On Apr 28, 2008, at 12:16 PM, Ian Bicking wrote:

> Massimo Di Pierro wrote:
>> Hello everybody,
>>
>> I am writing a comparison between web2py and other frameworks.  
>> Here is a
>> draft:
>>
>> http://mdp.cti.depaul.edu/examples/static/web2py_vs_others.pdf
>>
>> I do not want to say something incorrect about other frameworks so  
>> if I
>> do, could you please correct me?
>>
>> Please do not criticize my choice of comparables or my choice of
>> features. Since I am writing this I am allowed to introduce a bias
>> towards what I consider important.
>> Nevertheless I will appreciate suggestions about things that you
>> consider important and may be missing from the list.
>
> I'm not sure what you mean by Byte Code Compilation.  If you mean: a
> documented method of distributing byte code without source code, then
> yeah.  Any Python system can be distributed like that.  Projects I  
> work
> on don't document that because we generally think it's silly and
> obstructionist (but people do ask about it every so often).  Note also
> that you can decompile Python bytecode to fairly readable source  
> (better
> than Java).
>
> Pylons also includes error emailing.
>
> Re: App Engine: Pylons applications, when developed locally with the
> limitations of App Engine (including things like version  
> requirements),
> can be run unmodified on App Engine.  Though admittedly without  
> running
> the SDK you won't have the Datastore, and so you couldn't do much of
> interest without an abstraction library that worked over the Datastore
> and some other storage.
>
> Pylons supports multiple caching backends, not just memcached.   
> They are
> listed here:
> http://wiki.pylonshq.com/display/beaker/Configuration 
> +Options#ConfigurationOptions-type
>
> I'm not sure about the distinction between i18n built-in or third  
> party.
>   Pylons sets up a _() function by default (the standard convention  
> for
> this).  There are i18n libraries developed in conjunction with Pylons.
>
> SQLObject is "SQLObject", not "SQLObjects"
>
> Left outer joins are possible in SQLObject, but not using the ORM:
> http://sqlobject.org/SQLObject.html#left-join-and-other-joins
>
> Re: multiple databases -- I'm not entirely clear what you mean.   
> You can
> connect to multiple databases.
>
> Re: double submit: Django includes this:
> http://www.djangoproject.com/documentation/csrf/
> Pylons includes this:
> http://pylonshq.com/docs/module-pylons.decorators.secure.html
>
> Re: simplejson/Django -- don't they include simplejson directly, just
> like web2py?
>
> Re: file streaming -- I'm not sure what you mean.  Depending on  
> what you
> mean, it may or may not be correct for any number of frameworks.
>
> Pylons supports If-Modified-Since and other headers by default  
> (when you
> serve a file using paste.fileapp.FileApp), including Range requests  
> and
> ETags.
>
>
> --
> Ian Bicking : ianb at colorstudy.com : http://blog.ianbicking.org
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