How to name Exceptions that aren't Errors

[Steve Holden]

Leif K-Brooks wrote:
> Steve Holden wrote:
> 
>> I've even used an exception called Continue to overcome an irksome
>> restriction in the language (you used not to be able to continue a
>> loop from an except clause).
> 
> 
> Out of curiosity, how could you use an exception to do that? I would 
> think you would need to catch it and then use "continue", which wouldn't 
> be possible because of the restriction you were trying to work around in 
> the first place.

As long as the exception-handling code doesn't break then the loop 
automatically continues, so the trick was (IIRC) to have a loop body 
that essentially looked like this:

for item in somelist:
     try:
         {loop body}
     except Continue:
         pass

Then exceptions caught inside the loop body (which obviously had nested 
try: clauses) could raise Continue inside their except: clause to 
restart the loop at the next iteration.

regards
  Steve
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