[issue24451] Add metrics to future objects (concurrent or asyncio?)

[Joshua Harlow]

Joshua Harlow added the comment:

I like the pluggable/hookable idea, that would be nice (I'm siding on the side of hookable, since I think that would be more 'elegant'). If these are just callbacks that can be hooked in for these specific 'events' that would allow me to gather the timing information that is needed (and/or other information as well). Sound like a decent plan to add these?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24451>
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