[Python-ideas] Fwd: Concurrent safety?

[Mike Meyer]

On Tue, Nov 1, 2011 at 11:05 AM, Stephen J. Turnbull <stephen at xemacs.org>wrote:

> Mike Meyer writes:
>  > The proposed change doesn't prevent users from doing dangerous (and even
>  > ugly things).
> I didn't say it did, it "merely" imposes substantial inconvenience in
> hope that:
>  > It just forces them to *think* about what they're doing beforehand.
> which I believe to be un-Pythonic.
>

Really? Thinking is unpythonic?


> But you say that you have an approach in mind which is reasonably
> performant and doesn't change things too much for single-threaded
> apps, which would make the discussion moot.  So let's see how that
> works out.
>

If all you want to do is get the old semantics back in a single-threaded
application, you could do something like turning:

if __name__ == '__main__':
     main()

into:

if __name__ == '__main__':
     locking:
           main()

Actually, that achieves my goal - you hopefully thought about this long
enough to realize that this was safe before doing it.

     <mike
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