[Python-Dev] PEP 408 -- Standard library preview package (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Sun Jan 29 00:08:37 CET 2012

Le samedi 28 janvier 2012 à 16:03 -0700, Eric Snow a écrit :

On Sat, Jan 28, 2012 at 3:02 PM, Antoine Pitrou <solipsis at pitrou.net> wrote: > There are many reasons to import a module, such as viewing its > documentation. And the warning will trigger if the import happens in > non-user code, such as a library; or when there is a fallback for the > module not being present. People usually get annoyed by intempestive > warnings which don't warn about an actual problem.

As an alternative, how about a preview or provisional attribute on modules that are in this provisional state? So just add that big warning to the docs, as Guido suggested, and set the attribute as a programmatic indicator. Perhaps also add sys.provisionalmodules (or wherever) to explicitly give the full list for the current Python version.

Well, how often do you examine the attributes of a module before using it? I think that's a much too obscure way to convey the information.

Regards

Antoine.

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