[Python-ideas] Yielding through context managers

[Nick Coghlan]

On Sun, Jan 6, 2013 at 8:20 PM, Laurens Van Houtven <_ at lvh.cc> wrote:
> Hi Nick,
>
>
> When you say "high latency" (in __exit__), what does "high" mean? Is that
> order of magnitude what __exit__ usually means now, or network IO included?
>
> (Use case: distributed locking and remotely stored locks: it doesn't take a
> long time on network scales, but it can take a long time on CPU scales.)

The status quo can only be made to work for in-memory locks. If the
release step involves network access, then it's closer to the
"database transaction" use case, because the __exit__ method may need
to block.

Cheers,
Nick.

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