[IronPython] SystemExitException ?

[Orestis Markou]

Thanks! So we'll remove SystemExitException handling.

Tomas Matousek wrote:
> It's handled for you in ExecuteProgram and the exit code is returned. It's this handling that makes the difference between Execute and ExecuteProgram. ExecuteProgram is designed to process any program exit mechanism that the language has so that the host doesn't need to care and could be language independent.
> 
> Tomas
> 
> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Orestis Markou
> Sent: Friday, November 21, 2008 5:24 AM
> To: Discussion of IronPython
> Subject: [IronPython] SystemExitException ?
> 
> Hello,
> 
> In Resolver, we have our own RSIronPython.exe that sets up the
> environment (PATH and other things) and executes a program. It's not
> interactive - just a wrapper aroung ExecuteProgram, really.
> 
> We used to do this:
> 
> try
> {
>      ScriptSource source =
> engine.CreateScriptSourceFromFile(Path.Combine(currentDir,
> (string)args[0]));
>      source.ExecuteProgram();
> }
> catch (SystemExitException e)
> {
>      object o;
>      return e.GetExitCode(out o);
> }
> catch (Exception e)
> {
>      ExceptionOperations eo = engine.GetService<ExceptionOperations>();
>      Console.Write(eo.FormatException(e));
>      return 1;
> }
> return 0;
> 
> But then we realised that we always returned 0, because
> SystemExitException was never raised, even if a PythonScript did an
> exlicit sys.exit or raised SystemExit. So we now return the result of
> source.ExecuteProgram().
> 
> I'm just wondering if we should care about SystemExitException (a quick
> grep of the source is indicating that it's only used in
> PythonCommandLine), or if it's handled for us at a lower level.
> 
> Thanks,
> Orestis
> --
> Orestis Markou
> Software Engineer,
> Resolver Systems Ltd.
> orestis at resolversystems.com
> +44 (0) 20 7253 6372
> 
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-- 
Orestis Markou
Software Engineer,
Resolver Systems Ltd.
orestis at resolversystems.com
+44 (0) 20 7253 6372