New conda-smithy disables all builds

I’ve just updated to conda-smith 3.1.6, and running conda smithy rerender disables all my builds. I’m guessing this is something to do with the line skip: true # [not py36] in my meta.yml, which should mean only builds on Python 3.6 are done.

See https://github.com/conda-forge/heliopy-feedstock/pull/3 for an example of everything being disabled.

[djsutherland]

@dstansby The problem is that you have python in host and not in run, which with the new version of conda-build says “I only need Python at build time (and don’t care about the version), I don’t care about it at runtime.” You need python in run to tell conda-build to make different versions of the package for different Python versions.

Sent a PR to fix it to heliopy: https://github.com/conda-forge/heliopy-feedstock/pull/5.

[jakirkham]

Thanks @dougalsutherland 😃