packaging.tags.compatible_tags() includes cpxx-none-any tags if interpreter is provided #511
Description
Pyxll is published with a cp39-none-any wheel, which pip installs successfully with cpython 3.9 on windows. packaging.tags.sys_tags() doesn't include that tag. (The practical impact of which, for me, is that I can't install pyxll using poetry, which uses packaging.tags.sys_tags() to check wheel compatibility).
Pip has TargetPython.get_tags(), which gives the following for me
cp39-cp39-win_amd64
cp39-abi3-win_amd64
cp39-none-win_amd64
cp38-abi3-win_amd64
cp37-abi3-win_amd64
cp36-abi3-win_amd64
cp35-abi3-win_amd64
cp34-abi3-win_amd64
cp33-abi3-win_amd64
cp32-abi3-win_amd64
py39-none-win_amd64
py3-none-win_amd64
py38-none-win_amd64
py37-none-win_amd64
py36-none-win_amd64
py35-none-win_amd64
py34-none-win_amd64
py33-none-win_amd64
py32-none-win_amd64
py31-none-win_amd64
py30-none-win_amd64
cp39-none-any
py39-none-any
py3-none-any
py38-none-any
py37-none-any
py36-none-any
py35-none-any
py34-none-any
py33-none-any
py32-none-any
py31-none-any
py30-none-any
Whereas packaging.tags.sys_tags() gives
cp39-cp39-win_amd64
cp39-abi3-win_amd64
cp39-none-win_amd64
cp38-abi3-win_amd64
cp37-abi3-win_amd64
cp36-abi3-win_amd64
cp35-abi3-win_amd64
cp34-abi3-win_amd64
cp33-abi3-win_amd64
cp32-abi3-win_amd64
py39-none-win_amd64
py3-none-win_amd64
py38-none-win_amd64
py37-none-win_amd64
py36-none-win_amd64
py35-none-win_amd64
py34-none-win_amd64
py33-none-win_amd64
py32-none-win_amd64
py31-none-win_amd64
py30-none-win_amd64
py39-none-any
py3-none-any
py38-none-any
py37-none-any
py36-none-any
py35-none-any
py34-none-any
py33-none-any
py32-none-any
py31-none-any
py30-none-any
The only difference is the absence of cp39-none-any. Should those be the same? Pip makes use of packaging.tags, so should it use sys_tags() or is there a reason for the different implementation?