Message 361380 - Python tracker

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In-reply-to
Author	vstinner
Recipients	eric.snow, jeremy.kloth, jkloth, nanjekyejoannah, ncoghlan, rhettinger, vstinner
Date	2020年02月04日.23:59:24
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1580860764.33.0.449692974696.issue39511@roundup.psfhosted.org>

Content
> The other approach is to leave the current static singletons alone and > only use them for the main interpreter. Each subinterpreter would get > its own copy, created when that interpreter is initialized. Which API should be used in C extensions to be "subinterpreter-safe"? Currently, Py_None is a singleton shared by multiple interpreters. Should suddenly all C extensions use a new Py_GetNone() function which returns the per-interpreter singleton? If yes, that's basically what my PR 18301 does: #define Py_None Py_GetNone()

Content

> The other approach is to leave the current static singletons alone and
> only use them for the main interpreter. Each subinterpreter would get
> its own copy, created when that interpreter is initialized.
Which API should be used in C extensions to be "subinterpreter-safe"? Currently, Py_None is a singleton shared by multiple interpreters. Should suddenly all C extensions use a new Py_GetNone() function which returns the per-interpreter singleton? If yes, that's basically what my PR 18301 does:
 #define Py_None Py_GetNone()

History
Date	User	Action	Args
2020年02月04日 23:59:24	vstinner	set	recipients: + vstinner, rhettinger, ncoghlan, jkloth, jeremy.kloth, eric.snow, nanjekyejoannah
2020年02月04日 23:59:24	vstinner	set	messageid: <1580860764.33.0.449692974696.issue39511@roundup.psfhosted.org>
2020年02月04日 23:59:24	vstinner	link	issue39511 messages
2020年02月04日 23:59:24	vstinner	create

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