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lo there all,

i have an app that runs three classes as threads in the same program.
some of them need to be able to share some functions. Can i set a
function before i define a class and have the class use it ? Kinda like
this.

def some_function(var1, var2):
do something with var1, var2
return result

class do_something1(threading.Thread):
def __init__(var):
do something
def run():
var1 = 3
var2 = 4
result = some_function(var1,var2)

is this legal ? is it pythonic?
i ask because i plan to do a big re-write soon, and want to get rid of
some repetition

thanks

nephish:
> is this legal ? is it pythonic?

It's legan and pythonic. Functions are here for a purpose.

Bye,
bearophile

wrote:
> nephish:
> > is this legal ? is it pythonic?
>
> It's legan and pythonic. Functions are here for a purpose.
>
> Bye,
> bearophile

cool enough, and thanks for the quick reply.

shawn

nephish wrote:
> wrote:
> > nephish:
> > > is this legal ? is it pythonic?
> >
> > It's legan and pythonic. Functions are here for a purpose.
> >
> > Bye,
> > bearophile
>
> cool enough, and thanks for the quick reply.
>
> shawn

one more question.
the functions defined above the classes that the could be called from
within the classes, they do not need a 'self' declaration because they
are not part of a class, right?

sk

nephish:
> one more question.
> the functions defined above the classes that the could be called from
> within the classes, they do not need a 'self' declaration because they
> are not part of a class, right?

Class methods generally require the self as first parameter, functions
don't need the self. So your original code was wrong (sorry, I haven't
seen that before).

You can also inject functions as methods inside a class, and in such
case your function usually needs a self parameter too.

Bye,
bearophile

wrote:
> nephish:
> > one more question.
> > the functions defined above the classes that the could be called from
> > within the classes, they do not need a 'self' declaration because they
> > are not part of a class, right?
>
> Class methods generally require the self as first parameter, functions
> don't need the self. So your original code was wrong (sorry, I haven't
> seen that before).
>
> You can also inject functions as methods inside a class, and in such
> case your function usually needs a self parameter too.
>
> Bye,
> bearophile

ok, thanks much, thats all i needed to know.
shawn

At Saturday 26/8/2006 06:13, nephish wrote:

>i have an app that runs three classes as threads in the same program.
>some of them need to be able to share some functions. Can i set a
>function before i define a class and have the class use it ? Kinda like
>this.
>
>def some_function(var1, var2):
> do something with var1, var2
> return result

It's ok - but beware of concurrency problems. By example, two threads
trying to update the same thing. (Doesn't happen in your small example).



Gabriel Genellina
Softlab SRL





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At Monday 28/8/2006 14:55, shawn bright wrote:

>would it be better to move all the functions i want to share into
>some class and have the class threads refer to them that way ? i
>mean, just to keep things seperate, but resuseable ?

That really depends on your design. Python does not enforce that
*all* code be in class methods; using functions alone -as others have
pointed out- is fine.



Gabriel Genellina
Softlab SRL





__________________________________________________
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Todo lo que querías saber, y lo que ni imaginabas,
está en Yahoo! Respuestas (Beta).
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