On Oct 28, 2015, at 08:35 AM, Eric V. Smith wrote:
>The "following table" is a comment, that contains a few references to
>the tag "cpython-<version>", specifically cpython-32. It doesn't seem
>that the tag is routinely updated in the comment.
IIRC, it used to have to be changed in the code, but with this...
>sys.implementation.cache_tag returns 'cpython-36', and is in fact
>implemented as 'cpython-{PY_MAJOR_VERSION}{PY_MINOR_VERSION}'.
...I don't believe it does any more.
>Do I need to do anything else?
I don't think so.
>Unlike what the comment in _boostrap_external.py suggests, this "magic tag"
>will not change every time a bytecode is added, but only on every minor
>release. Which implies that if we have a micro release that adds an opcode,
>we'll in fact break the promise in the comment.
Right. Have we ever done that though? We shouldn't!
>From my understanding on how this tag is used, this wouldn't be a
>problem (because the magic number in the file also changes). But I want
>to make sure I'm not misunderstanding something. I think the comment
>above is probably just misleading.
Yeah, it's just out of date.
Cheers,
-Barry
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