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Mon Apr 9 14:46:05 CEST 2012 · https://mail.python.org/pipermail/python-dev/2012-April/118626.html

On Tue, 10 Apr 2012 00:24:07 +1200
Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
> Mark Shannon wrote:
> 
> > We have recently removed the f_yieldfrom field from the frame object.
> > (http://bugs.python.org/issue14230)
> 
> Hey, wait a minute. Did anyone consider the performance effect
> of that change on deeply nested yield-froms?

What's the point? Apart from naïve toy examples of traversing trees, I
don't think "deeply nested yield-froms" are likely to be
performance-critical.

Regards

Antoine.

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[Python-Dev] Change to yield-from implementation