search

conda-forge / esmf-feedstock

A conda-smithy repository for esmf.
BSD 3-Clause "New" or "Revised" License
2 stars 20 forks source link

version numbering for ESMF (e.g. 7.1.0r) causes problems with conda 4.6.* #35

Closed xylar closed 5 years ago

xylar commented 5 years ago

An attempt to install esmf with the latest conda and a spec with a wildcard such as:

conda create -n test_esmf "esmf>=7.1.*"

or 

conda create -n test_esmf "esmf>=7.1"

leads to an error like:

PackagesNotFoundError: The following packages are not available from current channels:

  - esmf[version='>=7.1.*']

The issue seems to be the non-standard r at the end of the version number. Conda uses PEP 440 to parse the syntax of version numbers, and the trailing r doesn't fit into that parsing.

This issue could potentially be fixed in conda and I'm willing to look into it. But I wondered if it would be feasible to just drop the non-standard r or in some other way make the esmf package compatible with the version numbering expected by conda.

See https://github.com/conda/conda/issues/8158 and https://github.com/conda/conda/issues/8309

xylar commented 5 years ago

@ocefpaf, since you have a good birds-eye view of conda and conda-forge, I'm wondering if you have thoughts on how you'd like to see this odd case resolved.

ocefpaf commented 5 years ago

I prefer that we drop the the r in the version. It is better to be PEP 440 compliant. I'm looking into it...