Spec: Version and platform checking underspecified

Currently, the "Version and platform checking" section of the typing spec is very barebones. It basically says:

Type checkers are expected to understand simple version and platform checks. [...] Don’t expect a checker to understand obfuscations like "".join(reversed(sys.platform)) == "xunil".

Of course, there's a world of difference between these two forms.

The type stubs document goes into a bit more of detail, and reflects the currently implemented functionality quite well, as far as I know. It would be a good starting point.

Maybe it would also make sense to support platform checks using startswith(), as that is officially recommended in the Python docs, and is required to properly support some Unix variants, like FreeBSD, that include the version number in the platform string. See also python/typeshed#11876.

Commencez par comparer la section « Version and platform checking » de la spécification de typing avec le document de stubs de types lié, qui reflète le comportement actuel. Consultez la documentation Python et l’issue de typeshed indiquées dans le rapport, puis définissez les vérifications prises en charge et décidez si startswith() doit figurer dans la spécification. Le travail est terminé lorsque la spécification décrit précisément le comportement attendu pour la vérification de la version et de la plateforme.