How to get the return status of a command runned by os.popen4

Alain Barthe barthe at magic.fr
Wed Sep 5 16:58:57 CEST 2001


> 
> Alain,
> 
> I've had good luck on Windows NT 4 with the following  combination:
> 
>     cmdPipe = os.popen(aCmdLine)
>     resultStream = cmdPipe.read()
> 
> At this point you can read resultStream for any stdout feedback
> returned by aCmdLine. Is that what you need?

Not really. I catch easily stdout, stdin and stderr. My need is to catch
the decimal return code of the command. On UNIX, 0 means success,
anything else means failure.

With os.popen, the close method returns this decimal code:

cmdPipe = os.popen(aCmdLine)
return_code = cmdPipe.close()

With os.popen4, it does not :-(

Thanks Terry.

Another idea ?

> 
> -Terry
> 
> Alain Barthe <barthe at magic.fr> wrote in message news:<3B93C945.EB6DF7A8 at magic.fr>...
> > Hi,
> >
> > I cannot get the return status of a command runned by os.popen4 or
> > popen2.popen4. File closing does not return the status as os.popen does.
> >
> > I can get it with an object popen2.popen4, but it's not Windows
> > compliant.
> >
> > Anybody has the solution ?
> >
> > Thanks.

-- 
Alain Barthe



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