default.nix

# self: super:

# {
#   mySundials = super.callPackage ./pkgs/sundials { };
#   myScikits-odes = super.pythonPackages.callPackage ./pkgs/scikits-odes { sundials_3_lapack = self.mySundials; };
# }

self: super:
let
  pythonOverlay = pself: psuper:
  {
    sundials_3_lapack = pself.callPackage ./pkgs/sundials { };
    myScikits-odes = pself.callPackage ./pkgs/scikits-odes { };
  };
in {
  python37Packages = super.python37Packages.override { overrides = pythonOverlay; };
}