"Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, and MATLAB"

Copyright (C) 2005-2021 The Sage Development Team

https://www.sagemath.org

1. Install SageMath in a conda environment as explained in https://github.com/sagemath/sage/blob/develop/src/doc/en/installation/conda.rst; we will use the conda environment name julia-sage as an example, so replace conda create -n sage ... by conda create -n julia-sage ....

2. Activate the environment and add Julia:

   $ conda activate julia-sage
   $ conda install julia
   

   Solving environment: failed .....

1. Set up SageMath in a conda environment as explained in https://github.com/sagemath/sage/blob/develop/src/doc/en/installation/conda.rst

   We use the conda environment name sage as an example.

2. Configure PyCall to use this conda environment:

   julia> ENV["PYTHON"]=rstrip(read(`conda run -n sage command -v python3`, String))
   julia> using Pkg
   julia> Pkg.build("PyCall")
   

3. Import and use sage:

   julia> using PyCall
   julia> sage_all = pyimport_conda("sage.all", "sage", "conda-forge")
   julia> sage_all.ZZ("17")
   PyObject 17
   julia> sage_all.polytopes.cube()
   PyObject A 3-dimensional polyhedron in ZZ^3 defined as the convex hull of 8 vertices
   

4. Run tests:

   julia> sage_doctest_control = pyimport("sage.doctest.control")
   julia> options = sage_doctest_control.DocTestDefaults()
   julia> DC = sage_doctest_control.DocTestController(options, ["somefile.py"])
   julia> DC.run()
   

In the instructions above, we do not activate the conda environment. Thus many tests that use external programs will fail. This will need work as described in https://trac.sagemath.org/ticket/30818

Configure PyCall to use a Julia-specific Python distribution via the Conda.jl package:

    ENV["PYTHON"]=""
    using Pkg
    Pkg.build("PyCall")

First manual tests:

    pyimport_conda("sage.features", "sage", "conda-forge")
    ---> errors apparently caused by channel priority