Create app with conda dependencies

[philippwitte]

I'm trying to create a relocatable app that has Python/Conda dependencies. E.g., in the simplest case, I'm creating an app that has PyPlot as the only dependency:

uuid = "60e04576-4d8c-4856-bc57-482afded9445"
authors = ["user"]
version = "0.1.0"

[deps]
PyPlot = "d330b81b-6aea-500a-939a-2ce795aea3ee"

The app itself looks like this (i.e. a simplified version of the example from PackageCompiler.jl):

module TestApp

using PyPlot

function julia_main()::Cint
    try
        real_main()
    catch
        Base.invokelatest(Base.display_error, Base.catch_stack())
        return 1
    end
    return 0
end


function real_main()
    @show ARGS
    @show Base.PROGRAM_FILE
    @show DEPOT_PATH
    @show LOAD_PATH
    @show pwd()
    @show Base.active_project()
    @show Sys.BINDIR

    @show Base.JLOptions().opt_level
    @show Base.JLOptions().nthreads
    @show Base.JLOptions().check_bounds

    display(Base.loaded_modules)
    println()

    println("Running a jll package:")

    return
end

end # module

Creating the app with create_app("TestApp", "TestAppCompiled") works as expected and I can run the binary. However, once I zip the compiled app and run it on a different machine, I'm getting a library error:

InitError(mod=:PyCall, error=ErrorException("could not load library "/home/user/.julia/conda/3/lib/libpython3.9.so.1.0"

So, it looks like conda was not included in the app and instead the library file from my local Julia installation is used. Any suggestions on how to address this?