thanks Ron,

but I was looking for a more general solution,
in which I don't change the program itself,
and where the error messages (in general) become more informative than it is by default.

cheers,
Stef


Barak, Ron wrote:
Hi Stef,

You can do something like (not tested):

try: self.Brick.Par [ self.EP[2] ]['FileName'] = filename
except IndexError,e:
                msg = "%s: '%s %s %s %d" % 
(e.strerror,e.filename,self.EP,self.EP[2],len(self.Brick.Par))
                print msg
Bye,
Ron.
        
-----Original Message-----
From: Stef Mientki [mailto:stef.mien...@gmail.com] Sent: Sunday, February 22, 2009 15:43
To: python-list@python.org
Subject: can error messages be improved or can they be overridden ?

hello,

I often get an error message like this

    self.Brick.Par [ self.EP[2] ]['FileName'] = filename
IndexError: list index out of range

Now it would be very welcome,
if the error message specified which index is out of range, in this case e.g.,
- specifying the length of self.EP
- specifying the value of self.EP[2]
- specifying the length of self.Brick.Par etc..

Is there a way to override the error message and provide this information, or is it impossible ?

And if it's possible, am I the only one who often stumbles about this problem ?
(I expect many people must have bounced in this problem before me ;-)

thanks,
Stef Mientki



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