can error messages be improved or can they be overridden ?

[Barak, Ron]

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.mientki at gmail.com] 
> Sent: Sunday, February 22, 2009 15:43
> To: python-list at 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
> 
> 
>