[Python-Dev] Re: [Stackless] comments on PEP 219

[Greg Ewing]

Christian Tismer <tismer@tismer.com>:

> But stopping the interpreter is a perfect unwind, and we
> can start again from anywhere.

Hmmm... Let me see if I have this correct.

You can switch from uthread A to uthread B as long
as the current depth of interpreter nesting is the
same as it was when B was last suspended. It doesn't
matter if the interpreter has returned and then
been called again, as long as it's at the same
level of nesting on the C stack.

Is that right? Is that the only restriction?

Greg Ewing, Computer Science Dept, +--------------------------------------+
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