check if there is data in stdin without blocking

[hg]

Hi,

Is there a way ? ... select ?



hg

[hg]

Re: check if there is data in stdin without blocking

hg wrote:

Hi,
>
Is there a way ? ... select ?
>
>
>
hg

PS:

import sys
import select

l_r = select.select([sys.stdin],[],[],0)

gives me:
File "select.py" , line 2, in ?
import select
File "/home/philippe/Desktop/select.py", line 4, in ?
l_r = select.select([sys.stdin],[],[],0)
TypeError: 'module' object is not callable

[Laurent Pointal]

Re: check if there is data in stdin without blocking

hg a écrit :

hg wrote:
>

>Hi,
>>
>Is there a way ? ... select ?
>>
>>
>>
>hg

PS:
>
import sys
import select
>
l_r = select.select([sys.stdin],[],[],0)
>
gives me:
File "select.py" , line 2, in ?
import select
File "/home/philippe/Desktop/select.py", line 4, in ?
l_r = select.select([sys.stdin],[],[],0)
TypeError: 'module' object is not callable
>
>

Wont work under Windows:

>>help(select.s elect)

....<zip>...
*** IMPORTANT NOTICE ***
On Windows, only sockets are supported; on Unix, all file descriptors.



If under Unix, maybe sys.stdin.filen o() is a valid descriptor for
select. Just test it.

And if under Windows, you may take a look at
22.1 msvcrt - Useful routines from the MS VC++ runtime
22.1.2 Console I/O
kbhit( ) - Return true if a keypress is waiting to be read.

[hg]

Re: check if there is data in stdin without blocking

Laurent Pointal wrote:

hg a écrit :

>hg wrote:
>>

>>Hi,
>>>
>>Is there a way ? ... select ?
>>>
>>>
>>>
>>hg

>PS:
>>
>import sys
>import select
>>
>l_r = select.select([sys.stdin],[],[],0)
>>
>gives me:
> File "select.py" , line 2, in ?
> import select
> File "/home/philippe/Desktop/select.py", line 4, in ?
> l_r = select.select([sys.stdin],[],[],0)
>TypeError: 'module' object is not callable
>>
>>

>
Wont work under Windows:

>>>help(select. select)

...<zip>...
*** IMPORTANT NOTICE ***
On Windows, only sockets are supported; on Unix, all file descriptors.
>
>
>
If under Unix, maybe sys.stdin.filen o() is a valid descriptor for
select. Just test it.
>
And if under Windows, you may take a look at
22.1 msvcrt - Useful routines from the MS VC++ runtime
22.1.2 Console I/O
kbhit( ) - Return true if a keypress is waiting to be read.

Well I'm testing under Linux but need support under Windows ... is there any
way to poll stdin somehow under both plateform ?

thanks,

hg

[Paul Boddie]

Re: check if there is data in stdin without blocking

hg wrote:

import select

[...]

File "/home/philippe/Desktop/select.py", line 4, in ?

Consider which module Python is trying to import here: the standard
library select module or your own program?

Paul

[hg]

Re: check if there is data in stdin without blocking

Paul Boddie wrote:

hg wrote:

>import select

>
[...]
>

> File "/home/philippe/Desktop/select.py", line 4, in ?

>
Consider which module Python is trying to import here: the standard
library select module or your own program?
>
Paul

Argh !!!! ;-)



thanks

[Gabriel Genellina]

Re: check if there is data in stdin without blocking

At Monday 15/1/2007 05:55, hg wrote:

>Well I'm testing under Linux but need support under Windows ... is there any
>way to poll stdin somehow under both plateform ?

I think you may want this portable getch function:
<http://aspn.activestat e.com/ASPN/Cookbook/Python/Recipe/134892>


--
Gabriel Genellina
Softlab SRL






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[hg]

Re: check if there is data in stdin without blocking

Gabriel Genellina wrote:

At Monday 15/1/2007 05:55, hg wrote:
>

>>Well I'm testing under Linux but need support under Windows ... is there
>>any way to poll stdin somehow under both plateform ?

>
I think you may want this portable getch function:
<http://aspn.activestat e.com/ASPN/Cookbook/Python/Recipe/134892>
>
>
--
Gabriel Genellina
Softlab SRL
>
>
>
>
>
>
_______________ _______________ _______________ _____
Preguntá. Respondé. Descubrí.
Todo lo que querías saber, y lo que ni imaginabas,
está en Yahoo! Respuestas (Beta).
¡Probalo ya!
http://www.yahoo.com.ar/respuestas

will take a look, thanks.

hg