[Tutor] anecdote in the workplace about try,except clause

[Simon Brunning]

> From:	Remco Gerlich [SMTP:scarblac@pino.selwerd.nl]
> > for line in file:
> >     try:
> >         data, garbage = string.split(line, ':')
> >     except ValueError:
> >         pass
> > 
> >     print 'Data: %s' % data
> > 
> > What he failed to realize is that when the except clause is triggered
> items in
> > the try clause go out of scope.  So data would not exist.
> 
> try: doesn't have it's own scope, so data doesn't go out of scope. But it
> was never assigned to in that loop.
> 
> I'd expect the print to print the data from the previous run through the
> loop.
 
Unless it failed first time through, in which case he would get a NameError.
Perhaps this is what makes Sean think that data is going 'out of scope'?

Cheers,
Simon Brunning
TriSystems Ltd.
sbrunning@trisystems.co.uk




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