PyPlot.jl as a dependency breaks package registration?

[a2ray]

Apologies for re-visiting the error in the closed issue #568 (comment), with the error underneath

 > [7/7] RUN julia -e 'using PyPlot':                                                                                                                                                                               
#0 1.434 [ Info: Installing matplotlib via the Conda matplotlib package...                                                                                                                                          
#0 1.435 [ Info: Running `conda install -y matplotlib` in root environment                                                                                                                                          
#0 1.892 Collecting package metadata (current_repodata.json): ...working... done                                                                                                                                    
#0 17.04 Solving environment: ...working... unsuccessful initial attempt using frozen solve. Retrying with flexible solve.                                                                                          
#0 23.96 Solving environment: ...working... unsuccessful attempt using repodata from current_repodata.json, retrying with next repodata source.
#0 27.86 
#0 27.86 ResolvePackageNotFound: 
#0 27.86   - conda==23.1.0

I believe that this error will impede package registration with PyPlot.jl as a dependency. Please see comments underneath.

[a2ray]

Apologies for revisiting this again ... but there is some error to do with conda and matplotlib in packages that have PyPlot.jl as a dependency but I can't pinpoint where. On triggering a new package release of HiQGA on GitHub using Registrator @JuliaRegistrator register I get almost exactly the same error as shown by @Octogonapus above, specifically,

ResolvePackageNotFound: 
#   - conda==23.1.0

where automerge fails with the error

[ Info: Installing matplotlib via the Conda matplotlib package...
[ Info: Running `conda install -y matplotlib` in root environment

ResolvePackageNotFound: 
  - conda==23.1.0

The automerge error is here.

I know this is not to do with my package or PyPlot, because a manual install with

pkg>add https://github.com/GeoscienceAustralia/HiQGA.jl.git

works fine on Julia v 1.9, the same Julia version as in the GitHub/Registrator automerge script. However, new package releases with PyPlot.jl as a dependency will break, I think.

[JuliaRegistrator]

Error while trying to register: Register Failed
@a2ray, it looks like you are not a publicly listed member/owner in the parent organization (JuliaPy).
If you are a member/owner, you will need to change your membership to public. See GitHub Help

[JuliaRegistrator]

Error while trying to register: Register Failed
@a2ray, it looks like you are not a publicly listed member/owner in the parent organization (JuliaPy).
If you are a member/owner, you will need to change your membership to public. See GitHub Help

[a2ray]

Very strange ... I fixed it on my end but had to use a build script in deps/build.jl and do a Conda.pip to install matplotlib before installing through Conda.add as normal. Otherwise, it kept failing to find conda-forge. I had never needed a build.jl before for PyPlot as a dependency. See here GeoscienceAustralia/HiQGA.jl@db833bf