Redirecting Python stdout ,stderr and stdin

[Jan Knop]

Hello

I am writing a Windows application where I need to redirect stdin,
stdout and stderr from Python. to my application
Is it a simple way of do it ?
Has anyone done it using Winsock ?

[Alexander Schmolck]

Re: Redirecting Python stdout ,stderr and stdin

Jan Knop <nospam@nospam. yes> writes:
[color=blue]
> Hello
>
> I am writing a Windows application where I need to redirect stdin,
> stdout and stderr from Python. to my application
> Is it a simple way of do it ?[/color]

import sys
sys.stdin, sys.stderr, sys.stdout = map(open, 'in.txt err.txt out.txt'.split( ),
'r w w'.split())
'as

[Serge Orlov]

Re: Redirecting Python stdout ,stderr and stdin


"Alexander Schmolck" <a.schmolck@gmx .net> wrote in message news:yfssmke8vl 0.fsf@black132. ex.ac.uk...[color=blue]
> Jan Knop <nospam@nospam. yes> writes:
>[color=green]
> > Hello
> >
> > I am writing a Windows application where I need to redirect stdin,
> > stdout and stderr from Python. to my application
> > Is it a simple way of do it ?[/color]
>
> import sys
> sys.stdin, sys.stderr, sys.stdout = map(open, 'in.txt err.txt out.txt'.split( ),
> 'r w w'.split())[/color]

That is why map should be deprecated asap ;)

sys.stdin = open("in.txt")
sys.stdout = open("out.txt", "w")
sys.stderr = open("err.txt", "w")

-- Serge

[Alexander Schmolck]

Re: Redirecting Python stdout ,stderr and stdin

"Serge Orlov" <sombDELETE@pob ox.ru> writes:
[color=blue]
> "Alexander Schmolck" <a.schmolck@gmx .net> wrote in message news:yfssmke8vl 0.fsf@black132. ex.ac.uk...[color=green]
> > Jan Knop <nospam@nospam. yes> writes:
> >[color=darkred]
> > > Hello
> > >
> > > I am writing a Windows application where I need to redirect stdin,
> > > stdout and stderr from Python. to my application
> > > Is it a simple way of do it ?[/color]
> >
> > import sys
> > sys.stdin, sys.stderr, sys.stdout = map(open, 'in.txt err.txt out.txt'.split( ),
> > 'r w w'.split())[/color]
>
> That is why map should be deprecated asap ;)
>
> sys.stdin = open("in.txt")
> sys.stdout = open("out.txt", "w")
> sys.stderr = open("err.txt", "w")[/color]

The obfuscation in the above example was intended not to immediately overwhelm
the OP (who expected having to use some winsock thingy) with simplicitly and
clarity, but now you've spoilt it.


'as

[Jan knob]

Re: Redirecting Python stdout ,stderr and stdin

On 24 Nov 2003 02:02:50 +0000, Alexander Schmolck <a.schmolck@gmx .net>
wrote:
[color=blue]
>"Serge Orlov" <sombDELETE@pob ox.ru> writes:
>[color=green]
>> "Alexander Schmolck" <a.schmolck@gmx .net> wrote in message news:yfssmke8vl 0.fsf@black132. ex.ac.uk...[color=darkred]
>> > Jan Knop <nospam@nospam. yes> writes:
>> >
>> > > Hello
>> > >
>> > > I am writing a Windows application where I need to redirect stdin,
>> > > stdout and stderr from Python. to my application
>> > > Is it a simple way of do it ?
>> >
>> > import sys
>> > sys.stdin, sys.stderr, sys.stdout = map(open, 'in.txt err.txt out.txt'.split( ),
>> > 'r w w'.split())[/color]
>>
>> That is why map should be deprecated asap ;)
>>
>> sys.stdin = open("in.txt")
>> sys.stdout = open("out.txt", "w")
>> sys.stderr = open("err.txt", "w")[/color]
>
>The obfuscation in the above example was intended not to immediately overwhelm
>the OP (who expected having to use some winsock thingy) with simplicitly and
>clarity, but now you've spoilt it.
>
>
>'as[/color]

Hi

Actually that what I wat in the end is a method for subsclassing the
python stdio's into my application window. This means that Python runs
in background with all threes stdio streams redirected .
This is I believe somehow done in the Komodo program from
ActiveState
As far as I have found out You need to define a Input and output
class and imlement Read Readline , Write and WriteLine method in
these classes.
Otherwise it will be necessary to somehow capture the Stdin stdout
streams from python console and redirect them .

with regards
Jan