Guido van Rossum wrote:

The thing that worries me most is reimplementing httplib, urllib and
so on to use all this new machinery *and* keep the old synchronous
APIs working *even* if some code is written using the old style and
some other code wants to use the new style.

I think this could be handled the same way you alluded to
before when talking about the App Engine. The base implementation
is asynchronous, and you provide a synchronous API that sets
up an async operation and then runs a nested event loop until
it completes.

--
Greg
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