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Tue Jun 21 17:10:58 EDT 2016 · https://mail.python.org/pipermail/python-dev/2016-June/145372.html

On 20 June 2016 at 13:32, Dino Viehland via Python-Dev
<python-dev at python.org> wrote:
> It doesn’t help with the issue of potentially multiple consumers of that field
> that has been brought up before but I’m not sure how concerned we should be
> about that scenario anyway.

Brett's comparison with sys.settrace seems relevant here - we don't
allow multiple trace hooks at once, which means if you want more than
one active at once, either they need to cooperate with each other, or
you need to install a meta-tracehook to manage them somehow.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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[Python-Dev] frame evaluation API PEP