> btw, what is in wheel's "2.0" METADATA file that is 2.0? and what's using
> it?
>
> can't bdist_wheel at least stop setting metadata to 2.0 from here on?

METADATA is the key/value file that setuptools uses when it finds a
.dist-info directory. It resembles pre-JSON PEP 426. It can be
classified as setuptools metadata now.

roger, METADATA is a PEP376/dist-info file that `pkg_resources.DistInfoDistribution` understands.

but my question was what are you adding, if anything, that warranted it having "Metadata-Version: 2.0"?