[Python-Dev] Re: Thread safety of deques
Aahz
aahz at pythoncraft.com
Tue Jul 20 05:55:54 CEST 2004
On Mon, Jul 19, 2004, Phillip J. Eby wrote:
>
> However, anything that calls back into Python code isn't necessarily
> atomic, and in general, almost anything can call back into Python code.
Yup.
> For example, the seemingly harmless dictionary item assignment can call
> back into Python for a custom type's __hash__ and __eq__ methods, so could
> it be that a thread switch could actually occur during this statement:
>
> foo[bar] = baz
>
> if 'bar' has such custom methods? Maybe I'm wrong, and the GIL is still
> held in such a case, but I'm not sure *how*.
No, it isn't.
--
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
Barbara Boxer speaks for me:
http://buffaloreport.com/2004/040713.boxer.marriage.html
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