Stdout

[gbastian@pasteur.fr]

Dear Users,

I am trying to recover through the python function
popen3 the stdout,in,err of a launched process.

I would like also to recover the stdout which you can
get only through the command: command1 >& filename

Do you know how I can access to that stdout by python?

Thanks

GIacomo

[Dustan]

Re: Stdout

On Apr 14, 2:49 am, gbast...@pasteu r.fr wrote:

Dear Users,
>
I am trying to recover through the python function
popen3 the stdout,in,err of a launched process.
>
I would like also to recover the stdout which you can
get only through the command: command1 >& filename
>
Do you know how I can access to that stdout by python?

I'm not sure if I understand your entire post, but in python, you get
access to stdout through the sys module:

>>print 'hello, world!'

hello, world!

>>import sys
>>sys.stdout.wr ite('hello, world!')

hello, world!

>>>

Thanks
>
GIacomo

[hlubenow]

Re: Stdout

gbastian@pasteu r.fr wrote:

Dear Users,
>
I am trying to recover through the python function
popen3 the stdout,in,err of a launched process.
>
I would like also to recover the stdout which you can
get only through the command: command1 >& filename
>
Do you know how I can access to that stdout by python?
>
Thanks
>
GIacomo

Check out module "subprocess " which is meant to replace function "popen3":

pr = subprocess.Pope n(["command", "-option1", "-option2"], stdin =
subprocess.PIPE , stdout = subprocess.PIPE , stderr = subprocess.PIPE ,
bufsize = 0, close_fds = True)

# And then:
line = pr.stdout.readl ine()
print line
pr.stdin.write( "hello to command")

HTH

H.