[Python-Dev] Last chance! (was: Does anybody really use frame->f_tstate ?) (original) (raw)

Guido van Rossum guido at python.org
Fri Dec 19 10:31:42 EST 2003

since I didn't get any reply to this request, either the request was bad or there is really nobody using ftstate in a way that makes it urgent to keep. I will wait a few hours and then make the change to Stackless, and I'd like to propose to do the same to the Python core.

I saved the message, but haven't had the time yet to think things through.

I did notice at least one case where using f_tstate might actually be a mistake: theoretically it's possible that two or more threads alternate calling next() on a generator (if they wrap it in a critical section); AFAICT the f_tstate is never updated.

--Guido van Rossum (home page: http://www.python.org/~guido/)

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