stop using pathof

Author: Christopher Doris

src/PythonCall.jl

@@ -1,6 +1,7 @@
 module PythonCall
 
 const VERSION = v"0.6.1"
+const ROOT_DIR = dirname(@__DIR__)
 
 using Base: @propagate_inbounds
 using MacroTools, Dates, Tables, Markdown, Serialization, Requires, Pkg

src/juliacall.jl

@@ -16,13 +16,15 @@ function init_juliacall()
         # otherwise, Python is being embedded into Julia by PythonCall, so should not exist
         error("'juliacall' module already exists")
     else
+        # TODO: Is there a more robust way to import juliacall from a specific path?
         # prepend the directory containing juliacall to sys.path
-        sys.path.insert(0, joinpath(dirname(dirname(pathof(PythonCall))), "python"))
+        sys.path.insert(0, joinpath(ROOT_DIR, "python"))
         # prevent juliacall from initialising itself
         os.environ["PYTHON_JULIACALL_NOINIT"] = "yes"
         # import juliacall
         pycopy!(jl, pyimport("juliacall"))
         # check the version
+        @assert realpath(pystr_asstring(jl.__path__[0])) == realpath(joinpath(ROOT_DIR, "python", "juliacall"))
         @assert pystr_asstring(jl.__version__) == string(VERSION)
         @assert pybool_asbool(jl.CONFIG["noinit"])
     end