Fixed functions getting paths and added tests (#83)

src/amulet_nbt/pybind/amulet_nbt.cpp

@@ -77,14 +77,14 @@ void init_amulet_nbt(py::module& m) {
     m.def(
         "get_include",
         [m, path_join](){
-            return path_join(m.attr("__path__")[0], py::str("include"));
+            return path_join(m.attr("__path__").attr("__getitem__")(0), py::str("include"));
         },
         py::doc("C++ include directory")
     );
     m.def(
         "get_source",
         [m, path_join](){
-            return path_join(m.attr("__path__")[0], py::str("cpp"));
+            return path_join(m.attr("__path__").attr("__getitem__")(0), py::str("cpp"));
         },
         py::doc("C++ source directory")
     );

tests/test_amulet_nbt/test_metadata.py

@@ -0,0 +1,19 @@
+import unittest
+import os
+import amulet_nbt
+
+
+class LegacyNBTTests(unittest.TestCase):
+    def test_version(self) -> None:
+        self.assertIsInstance(amulet_nbt.__version__, str)
+        self.assertIsInstance(amulet_nbt.__major__, int)
+
+    def test_paths(self) -> None:
+        self.assertIsInstance(amulet_nbt.get_include(), str)
+        self.assertIsInstance(amulet_nbt.get_source(), str)
+        self.assertTrue(os.path.isdir(amulet_nbt.get_include()))
+        self.assertTrue(os.path.isdir(amulet_nbt.get_source()))
+
+
+if __name__ == "__main__":
+    unittest.main()