Message 290056 - Python tracker

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In-reply-to
Author	vstinner
Recipients	eric.snow, ncoghlan, serhiy.storchaka, vstinner
Date	2017年03月23日.17:49:34
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1490291374.65.0.961951587868.issue29881@psf.upfronthosting.co.za>

Content
I modified more modules to use the new API. I'm not sure that using the API in modules is safe. It's safe to use the API in functions which begins with trying to initialize the variable. In such case, if the variable is cleared, calling the function later initialize again the variable and it's fine. When for module variables only initialized when the module is initialized, there is a risk that a module function tries to access a variable which has been cleared previously during Python shutdown. See for example changes in the _datetime module.

Content

I modified more modules to use the new API. I'm not sure that using the API in modules is safe.
It's safe to use the API in functions which begins with trying to initialize the variable. In such case, if the variable is cleared, calling the function later initialize again the variable and it's fine.
When for module variables only initialized when the module is initialized, there is a risk that a module function tries to access a variable which has been cleared previously during Python shutdown.
See for example changes in the _datetime module.

History
Date	User	Action	Args
2017年03月23日 17:49:34	vstinner	set	recipients: + vstinner, ncoghlan, eric.snow, serhiy.storchaka
2017年03月23日 17:49:34	vstinner	set	messageid: <1490291374.65.0.961951587868.issue29881@psf.upfronthosting.co.za>
2017年03月23日 17:49:34	vstinner	link	issue29881 messages
2017年03月23日 17:49:34	vstinner	create

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