Extending Python: exception handling

[Skip Montanaro]

    John> I would like to know how YOU are using exception handling OTHER
    John> than for error management.

It makes a reasonable substitute for the lack of labelled break statements
on certain occasions.

    class BreakLabel: pass
    try:
	for i in ...:
	    for j in ...:
		exit_cond = do_some_work()
		if exit_cond: raise BreakLabel
    except BreakLabel:
	pass

instead of 

    for i in ...:
	exit_cond2 = 0
	for j in ...:
	    exit_cond = do_some_work()
	    if exit_cond:
		exit_cond2 = 1
		break
        if exit_cond2: break

Skip Montanaro | http://www.mojam.com/
skip at mojam.com | http://www.musi-cal.com/~skip/
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