Message 306737 - Python tracker

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Author	vstinner
Recipients	Decorater, eric.snow, ncoghlan, serhiy.storchaka, vstinner
Date	2017-11-22.17:34:31
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1511372071.25.0.213398074469.issue32096@psf.upfronthosting.co.za>
In-reply-to

Content
> We don't currently have anything like that for environment variables, not even the ones which are "read once at startup, then never read them again". I changed Py_Main() in bpo-32030. Now multiple environment variables are read once at startup and put into _PyCoreConfig: https://github.com/python/cpython/blob/803ddd8ce22f0de3ab42fb98a225a704c000ef06/Modules/main.c#L1365-L1413 I added new fields to _PyCoreConfig: https://github.com/python/cpython/blob/803ddd8ce22f0de3ab42fb98a225a704c000ef06/Include/pystate.h#L27-L39 I suggest to continue to add more fields to _PyCoreConfig to move all code to configure Python before Py_Initialize(), and later to let users embedding Python to configure Python as they want, without losing features. For example, to enable the new "development mode" (-X dev), now you "just" have to set _PyCoreConfig.dev_mode to 1.

>  We *don't* currently have anything like that for environment variables, not even the ones which are "read once at startup, then never read them again".

I changed Py_Main() in bpo-32030. Now multiple environment variables are read once at startup and put into _PyCoreConfig:

https://github.com/python/cpython/blob/803ddd8ce22f0de3ab42fb98a225a704c000ef06/Modules/main.c#L1365-L1413

I added new fields to _PyCoreConfig:

https://github.com/python/cpython/blob/803ddd8ce22f0de3ab42fb98a225a704c000ef06/Include/pystate.h#L27-L39

I suggest to continue to add more fields to _PyCoreConfig to move all code to configure Python before Py_Initialize(), and later to let users embedding Python to configure Python as they want, without losing features. For example, to enable the new "development mode" (-X dev), now you "just" have to set _PyCoreConfig.dev_mode to 1.

History
Date	User	Action	Args
2017-11-22 17:34:31	vstinner	set	recipients: + vstinner, ncoghlan, eric.snow, serhiy.storchaka, Decorater
2017-11-22 17:34:31	vstinner	set	messageid: <1511372071.25.0.213398074469.issue32096@psf.upfronthosting.co.za>
2017-11-22 17:34:31	vstinner	link	issue32096 messages
2017-11-22 17:34:31	vstinner	create