On 4/28/05, Greg Ewing <[EMAIL PROTECTED]> wrote:
> Neil Schemenauer wrote:
>
> > The translation of a block-statement could become:
> >
> > itr = EXPR1
> > arg = None
> > while True:
> > try:
> > VAR1 = next(itr, arg)
> > except StopIteration:
> > break
> > try:
> > arg = None
> > BLOCK1
> > except Exception, exc:
> > err = getattr(itr, '__error__', None)
> > if err is None:
> > raise exc
> > err(exc)
>
> That can't be right. When __error__ is called, if the iterator
> catches the exception and goes on to do another yield, the
> yielded value needs to be assigned to VAR1 and the block
> executed again. It looks like your version will ignore the
> value from the second yield and only execute the block again
> on the third yield.
Could you do something like:
itr = EXPR1
arg = None
next_func = next
while True:
try:
VAR1 = next_func(itr, arg)
except StopIteration:
break
try:
arg = None
next_func = next
BLOCK1
except Exception, arg:
try:
next_func = type(itr).__error__
except AttributeError:
raise arg
?
STeVe
--
You can wordify anything if you just verb it.
--- Bucky Katt, Get Fuzzy
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