Dear Andreas,
thank you very much for your reply. I re-checked, and indeed, I can
force Python into interactive mode with the option -i. Using this
option, Oz receives its output (see below). BTW: unfortunately, the
Oz pipe can not distinguish between stdin and stderr, which would be
very handy for cases like this.
Anyway, this did not solve my actual problem yet :-P Nevertheless, I
would like to ensure whether a similar mechanism does apply for the
programs I am interested in. So, does anybody knwo how applications
like Python know the difference (ie. whether they are running in an
interactive terminal or Oz' Open.pipe) and is there a way to fool
them into believing otherwise (I tried setting the TERM environment
variable to something different, but that didn't work).
Best
Torsten
%% The following examples works provides a Python interface to Oz ;-)
%% See previous mail for the definition of Shell.
declare
MyShell = {New Shell init(cmd:python args:["-i"])}
{MyShell showAll}
{MyShell cmd("1 + 2")}
{MyShell close}
On Sep 7, 2007, at 3:20 PM, [EMAIL PROTECTED] wrote:
Quoting Torsten Anders <[EMAIL PROTECTED]>:
I experience a problem with Open.pipe, which I do not understand.
For most applications, I am able to read their stdout/stderr into
Oz. For some applications, however, this output does not show up
in Oz. There output works perfectly fine on the terminal though,
including redirection of their output into files or pipes. What
can be the reasons that some program outputting to stdout/stderr
works perfectly fine on the commandline, but is quasi silent for Oz?
Probably this is not relevant, but some programs (e.g. some shells)
have different modes: interactive and non-interactive.
They can automatically detect whether they have an interactive
controlling terminal or not. If they are run from Oz, such a
terminal is not present; that could explain that they behave
differently.
If this is the cause, the solution might be to look in the
documentation of the program for a way to "force" interactive
mode even when there is no terminal (shells usually have such
an option).
Good luck,
Andreas
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Torsten Anders
Interdisciplinary Centre for Computer Music Research
University of Plymouth
http://strasheela.sourceforge.net
http://www.torsten-anders.de
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