Re: [Jython-users] 1.python vs java coding , 2. keyword-function(like print, import, ..) implementation

[<ge...@ce...>]

Thanx a lot. Really helpful everybody

As far as why:
I would like to implement an execute-like commnad like "my_exec foo(bar)" and 
some unix-shell_like commands like cd....

>>On 4/14/07, ge...@ce... <ge...@ce...> wrote:
>> 2. If I want to implement a keyword-like function like print or import how 
>do I
>> do it? I want to have something like that : foo bar , and execute foo with 
>param
>> bar. A function that doesn't require parenthesis. Could someone tell me 
>where I
>> can find such implementation in the jython source code?

>AFAIK you can not override or define your function this way (BTW why
>do you need this in the first place?) and there is standard Python
>module "shlex" that can be used for constructing your own
>Unix_shell_like interpeters.

>-- 
>Petr Gladkikh

> Hi again,
> 
> > > 2. If I want to implement a keyword-like function like print or import
> how do I
> > > do it? I want to have something like that : foo bar , and execute foo
> with param
> > > bar. A function that doesn't require parenthesis. Could someone tell me
> where I
> > > can find such implementation in the jython source code?
> 
> Looking around for that kind of an implementation, I figured out that
> you can write a python file by the name of 'foo.py' and make it accept
> arguments. :)
> 
> So that is POSSIBLE without a lot of HACKING. :)
> 
> Hope that helps.
> 
> --musically_ut
> 
> 
> On 4/15/07, Utkarsh Upadhyay <mus...@gm...> wrote:
> > Hi there,
> >
> > > 1. Surely it is answered already, but I don't find such an answer. I want
> to
> > > know which is more efficient, coding to python or java? I mean for
> operations
> > > that are present in jython through both python and jython.  For
> simplicity:
> >
> > > What is more efficient and what is the usual to follow, what is the
> jythonic way?
> >
> > Well, this indeed is an oft asked question, asked so so often that
> > there are separate tools for the process called 'profilers'. You can
> > look them up on Google, or even the Python Manual.
> >
> > BTW, to answer your question, I used the module 'profile' and got the
> > following results:
> >
> > >
> > > In [0]: import math
> > > In [1]: math.pow(2,2)
> > > Out [1]: 4.0
> >
> > >>>          2 function calls in 0.250 CPU seconds
> >
> > > In [2]: from java.lang import Math
> > > In [3]: Math.pow(2,2)
> > > Out [3]: 4.0
> > >
> >
> > >>>         2 function calls in 0.015 CPU seconds
> >
> > In the hind sight, the results seem somewhat obvious (though I never
> > imagined such an order of magnitude of difference). The jython code is
> > after all converted to a Java analogue and then run (NOT TO BE TAKEN
> > LITERALLY, there is a LOT behind the process). So a direct Java
> > implementation ought to make it somewhat straight forward for Jython,
> > resulting  in a faster code.
> >
> > >
> > > 2. If I want to implement a keyword-like function like print or import
> how do I
> > > do it? I want to have something like that : foo bar , and execute foo
> with param
> > > bar. A function that doesn't require parenthesis. Could someone tell me
> where I
> > > can find such implementation in the jython source code?
> > >
> >
> > This may not be all that wise, neither fruitful, an idea. It can be
> > done with considerable hacking of the course code, but then there must
> > exist a Pythonic way of doing the same thing.
> >
> > --musically_ut
> >
> > --
> > Never trust a spiritual leader who cannot dance. ~Mr. Miyagi, The Next
> > Karate Kid
> >
> 
> 
> -- 
> Never trust a spiritual leader who cannot dance. ~Mr. Miyagi, The Next
> Karate Kid
> 




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