[IronPython] Line numbers in snippets...

[Alex Henderson]

Ahhh... hadn't thought about that ;o) hmm... All the calls to the script
engine are wrapped up against a simplified engine interface as it is, as we
are attempting to be at least partly script-engine agnostic... so I can't
see why I couldn't do that, and wrap the exception in one of our own, tagged
with the additional error location info.

I'll give it a go, and if you don't hear from me then you'll know it
worked...  I'm a bit of a python newbie, I assume it's easy enough to grab
hold of a stack trace as well as the line number etc?

Thanks Dino,
 
 - Alex

> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-
> bounces at lists.ironpython.com] On Behalf Of Dino Viehland
> Sent: Tuesday, 16 May 2006 8:55 a.m.
> To: Discussion of IronPython
> Subject: Re: [IronPython] Line numbers in snippets...
> 
> Ahh, ok...  Can you wrap the user code you run w/ more python code?  If
> you could then you could do:
> 
> try:
>         // run user code
> except:
>         import sys
>         print sys.exc_info()[2].tb_lineno
>         print sys.exc_info()[2].tb_frame.f_code.co_filename
> 
> That's the Python way to get this information.  Let us know if that seems
> to burdensome.  If so we could look at a way to expose this information
> via the engine APIs instead of requiring you to create this wrapper.
> 
> 
> Do you want to help develop Dynamic languages on CLR?
> (http://members.microsoft.com/careers/search/details.aspx?JobID=6D4754DE-
> 11F0-45DF-8B78-DC1B43134038)
> 
> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-
> bounces at lists.ironpython.com] On Behalf Of Alex Henderson
> Sent: Monday, May 15, 2006 1:48 PM
> To: 'Discussion of IronPython'
> Subject: Re: [IronPython] Line numbers in snippets...
> 
> Not quite... my problem is I don't have a PythonSyntaxError thrown, I
> believe that's because I'm actually receiving a python generated
> exception,
> for instance I might catch a PythonNameError when someone incorrectly
> spells
> a variable name... and that doesn't contain any information I can use the
> locate where in the snippet string the error occurred... Is there a way to
> get this information out of the PythonEngine itself perhaps?
> 
> The reason I ask that I just want to implement a feature where by a user
> can
> look at a log "view" in our product, see an error has occurred in their
> script, and be able to double click the entry and navigate to our code
> editor and be on the right line for fixing the problem - for this to
> happen
> we need to be able to extract some details of where the error occurred
> when
> using PythonEngine.Execute...
> 
> Any ideas I would be greatly appreciated... :)
> 
> Chez,
> 
>  - Alex
> 
> > -----Original Message-----
> > From: users-bounces at lists.ironpython.com [mailto:users-
> > bounces at lists.ironpython.com] On Behalf Of Dino Viehland
> > Sent: Tuesday, 16 May 2006 8:21 a.m.
> > To: Discussion of IronPython
> > Subject: Re: [IronPython] Line numbers in snippets...
> >
> > We recently made a change so that PythonSyntaxError contains a Line,
> > Column, Filename, and some other properties on it that you should be
> able
> > to get at for this information.  Is that what you're looking for?
> >
> >
> > Do you want to help develop Dynamic languages on CLR?
> >
> (http://members.microsoft.com/careers/search/details.aspx?JobID=6D4754DE-
> > 11F0-45DF-8B78-DC1B43134038)
> > -----Original Message-----
> > From: users-bounces at lists.ironpython.com [mailto:users-
> > bounces at lists.ironpython.com] On Behalf Of Alex Henderson
> > Sent: Monday, May 15, 2006 1:09 PM
> > To: 'Discussion of IronPython'
> > Subject: [IronPython] Line numbers in snippets...
> >
> > We've been using IronPython as a scripting engine in one of our products
> > that's in development for a while now, works great :)
> >
> > However when executing code which has syntax errors in it we can't seem
> to
> > get line numbers back from the exception, or find any compilation
> context
> > we
> > can examine for a list of errors - which makes it difficult to diagnose
> > problems obviously.
> >
> > I figure this is probably a limitation of the execute method, unless
> I've
> > missed something... is there a different approach we could use where we
> > will
> > get line numbers when an error occurs?
> >
> > Chez,
> >
> >  - Alex
> >
> > _______________________________________________
> > users mailing list
> > users at lists.ironpython.com
> > http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
> > _______________________________________________
> > users mailing list
> > users at lists.ironpython.com
> > http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
> 
> _______________________________________________
> users mailing list
> users at lists.ironpython.com
> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
> _______________________________________________
> users mailing list
> users at lists.ironpython.com
> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com