Pkg.add("PyPlot@2.9.0"); is not a valid package name

General Usage
1

hi there,

I’m using a command line to install packages. I have a problem when I want to fix the version.
In the doc:
https://pkgdocs.julialang.org/v1/managing-packages/
It is said that I can use @version, #branchname (or #commitSHA1 )

pkg> add Example@0.4
pkg> add Example#master

This command works fine for me

julia --project=/opt/julia/share/julia/environments/v1.6 -e 'ENV["PYTHON"]="/opt/jupyterhub/bin/python"; empty!(DEPOT_PATH); push!(DEPOT_PATH,"/opt/julia/share/julia"); using Pkg; Pkg.add("PyPlot"); Pkg.precompile()'

julia --project=/opt/julia/share/julia/environments/v1.6 -e 'using Pkg; Pkg.status("PyPlot")'
      Status `/opt/julia/share/julia/environments/v1.6/Project.toml`
  [d330b81b] PyPlot v2.9.0

julia --project=/opt/julia/share/julia/environments/v1.6 -e 'using Pkg; Pkg.rm("PyPlot")'

But adding version it does not work:

julia --project=/opt/julia/share/julia/environments/v1.6 -e 'ENV["PYTHON"]="/opt/jupyterhub/bin/python"; empty!(DEPOT_PATH); push!(DEPOT_PATH,"/opt/julia/share/julia"); using Pkg; Pkg.add("PyPlot@2.9.0"); Pkg.precompile()'
ERROR: `PyPlot@2.9.0` is not a valid package name

julia --project=/opt/julia/share/julia/environments/v1.6 -e 'ENV["PYTHON"]="/opt/jupyterhub/bin/python"; empty!(DEPOT_PATH); push!(DEPOT_PATH,"/opt/julia/share/julia"); using Pkg; Pkg.add("PyPlot#d330b81b"); Pkg.precompile()'
ERROR: `PyPlot#d330b81b` is not a valid package name

Can somebody help me on this?

julia --version
julia version 1.6.0
2

You need to use a PackageSpec, see 12. API Reference · Pkg.jl.

You might also find jlpkg useful.

3

Thanks, now it works. I will take a look at your code.

julia --project=/opt/julia/share/julia/environments/v1.6 -e 'ENV["PYTHON"]="/opt/jupyterhub/bin/python"; empty!(DEPOT_PATH); push!(DEPOT_PATH,"/opt/julia/share/julia"); using Pkg; Pkg.add(PackageSpec(name="PyPlot", version="2.9.0")); Pkg.precompile()'