dynamic classes and duck typing

[Andrei Alexandrescu]

Bill Baxter wrote:
> On Tue, Dec 1, 2009 at 4:37 PM, Andrei Alexandrescu
> <SeeWebsiteForEmail at erdani.org> wrote:
>> Leandro Lucarella wrote:
>>> Walter Bright, el  1 de diciembre a las 13:45 me escribiste:
>>>> Leandro Lucarella wrote:
>>>>> I develop twice as fast in Python than in D. Of course this is only me,
>>>>> but that's where I think Python is better than D :)
>>>> If that is not just because you know the Python system far better
>>>> than the D one, then yes indeed it is a win.
>>> And because you have less noise (and much more and better libraries
>>> I guess :) in Python, less complexity to care about.
>>>
>>> And don't get me wrong, I love D, because it's a very expressive language
>>> and when you need speed, you need static typing and all the low-level
>>> support. They are all necessary evil. All I'm saying is, when I don't need
>>> speed and I have to do something quickly, Python is still a far better
>>> language than D, because of they inherent differences.
>>>
>>>>> I think only not having a compile cycle (no matter how fast compiling
>>>>> is)
>>>>> is a *huge* win. Having an interactive console (with embedded
>>>>> documentation) is another big win.
>>>> That makes sense.
>>> I guess D can greatly benefit from a compiler that can compile and run
>>> a multiple-files program with one command (AFAIK rdmd only support one
>>> file programs, right?) and an interactive console that can get the ddoc
>>> documentation on the fly. But that's not very related to the language
>>> itself, I guess it's doable, the trickiest part is the interactive
>>> console, I guess...
>>>
>> I'm amazed that virtually nobody uses rdmd. I can hardly fathom how I
>> managed to make-do without it.
> 
> The web page[1] says it doesn't work on Windows.  That'd be my excuse
> for not using it.
> 
> 
> [1] http://www.digitalmars.com/d/2.0/rdmd.html
> 
> --bb

rdmd does work for Windows. What it does is to detect and cache 
dependencies such that you only need to specify your main file.

Andrei