Make anaconda_conda work in PyJulia imported in python interpreter statically-linked to libpython.

[tkf]

Another approach could be to create a dummy deps.jl named (say) src/deps_nolibpython.jl like this:

const python = ""
const libpython = ""
const pyprogramname = ""
const wpyprogramname = Base.cconvert(Cwstring, "")
const pyversion_build = v"0.0.0"
const PYTHONHOME = ""
const wPYTHONHOME = Base.cconvert(Cwstring, "")

"True if we are using the Python distribution in the Conda package."
const conda = false

and then include it.

[stevengj]

This means it will never find conda for statically linked libpython. Is that what we want?

[tkf]

Yes. But, I think that's fine because it's called from a Python executable. I don't think Python packages don't usually install Python package dependencies automatically at runtime.

Having said that, pyimport("sys")[:executable] is technically a valid option here. But I don't think that's the right thing to do. Please see #560