Ned Deily <n...@python.org> added the comment:

Mark:
> Or am I misunderstanding?

No, you are not misunderstanding :)

> ABI breakage shouldn't happen *at all* in bugfix releases, whether stable ABI 
> or not.

Absolutely.

Victor:
> Julien: You cannot use the same wheel package for all Python 3.7.x versions: 
> you need to either always compile at the installation, or ship a different 
> wheel package per micro Python 3.7.x version.

Just to be absolutely clear here, in general you *are* supposed to be able to 
use the same wheel package for all 3.7.x releases (or one built for any other 
3.x.x release series) as long as the extension modules in the wheel follow 
certain rules and the rules include don't use any Include/internal headers. If 
the extension module violates that restriction (as is apparently the case 
here), ABI compatibility across bugfix releases cannot be assured.

----------
nosy: +ned.deily

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