[Python-ideas] Possible PEP 380 tweak

[Ron Adam]

On 10/28/2010 08:17 PM, Nick Coghlan wrote:

>    def average_sums():
>      # Advances to a new sum when EndSum is thrown in
>      # Finishes the last sum and averages them all when GeneratorExit
> is thrown in
>      sums = []
>      try:
>        while 1:
>          sums.append(yield from gsum())

Wouldn't this need to be...

            gsum_ = gsum()
            next(gsum_)
            sums.append(yield from gsum_)

Or does the yield from allow send on a just started generator?

>      except GeneratorExit as ex:
>        # Our proposed expansion tweak is to enable the next line
>        sums.append(ex.args[0])
>      return sum(sums) / len(sums)


Ron