[Python-ideas] PEP 479: Change StopIteration handling inside generators

[Chris Barker]

On Tue, Nov 25, 2014 at 9:30 AM, Wolfgang Maier <
wolfgang.maier at biologie.uni-freiburg.de> wrote:

> allow StopIteration to be raised anywhere, but let it bubble up only *one*
> frame.
> So if the next outer frame does not deal with it, the exception would be
> converted to UnhandledStopIteration (or something else) when it's about to
> bubble out of that outer frame.
> The builtin next() would simply reset the frame count by catching and
> reraising StopIteration raised inside its argument (whether that's an
> iterator's __next__ or a generator; note that in this scenario using raise
> StopIteration instead of return inside a generator would remain possible).
>

I also have no idea if this is practical from an implementation
perspective, but I like how it support my goal of keeping the behavior of
iterator classes and generators consistent.

-Chris




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