pip and conda packages, their names and metadata

[elveshoern32]

Hi *,

I'm dealing a lot with conda/pip package management in my organization. Recently I stumbled across this finding: sympy seems to written in pure python, no C/Go/Rust/... code included or linked to. Therefore the pip wheels are named 'sympy-...-any.whl' and the conda packages reside below 'noarch'. Nevertheless there are packages on conda-forge available with buildstrings that begin with 'pypy', AFAIK indicating that those packages are to be used with PyPy instead of CPython. First question: Why are those packages present at all, additionally to the usual packages with buildstrings of the form 'pyxxxxx'? Furthermore: In the metadata of these pypy-packages there's the dependency 'python * *_cpython' given, indicating that those packages are to be used with CPython only. Second question: Isn't this a contradiction to the package's name?

Can anybody shed some light on this issue? Thanks in advance!