fix: don't do package_path search, use sys.path always

boa/interpret.py

@@ -30,21 +30,20 @@ class BoaImporter(importlib.abc.MetaPathFinder):
     def __init__(self):
         self._path_lookup = {}
 
+    # TODO: replace this with more modern `find_spec()`
     def find_module(self, fullname, package_path, target=None):
-        # note: maybe instead of looping, append path to package_path
         path = Path(fullname.replace(".", "/")).with_suffix(".vy")
 
-        for prefix in package_path:
-            # for fullname == "x.y.z"
-            # prefix looks something like "<...>/site-packages/x"
-            to_try = Path(prefix).parent / path
+        for prefix in sys.path:
+            to_try = Path(prefix) / path
 
             if to_try.exists():
                 self._path_lookup[fullname] = to_try
                 return self
 
         return None
 
+    # TODO: replace with more modern `exec_module()` and `create_module()`
     def load_module(self, fullname):
         if fullname in sys.modules:
             return sys.modules[fullname]