fixup path comparison

Author: jacobtylerwalls

astroid/interpreter/_import/util.py

@@ -15,7 +15,12 @@
 
 @lru_cache(maxsize=4096)
 def is_namespace(modname: str) -> bool:
- from astroid.modutils import EXT_LIB_DIRS # pylint: disable=import-outside-toplevel
+ from astroid.modutils import ( # pylint: disable=import-outside-toplevel
+ EXT_LIB_DIRS,
+ STD_LIB_DIRS,
+ )
+
+ STD_AND_EXT_LIB_DIRS = STD_LIB_DIRS.union(EXT_LIB_DIRS)
 
  if modname in sys.builtin_module_names:
  return False
@@ -75,7 +80,7 @@ def is_namespace(modname: str) -> bool:
  # Update last_submodule_search_locations
  if found_spec and found_spec.submodule_search_locations:
  if any(
- location in EXT_LIB_DIRS
+ any(location.startswith(lib_dir) for lib_dir in STD_AND_EXT_LIB_DIRS)
  for location in found_spec.submodule_search_locations
  ):
  return False

tests/unittest_manager.py

@@ -128,24 +128,10 @@ def test_submodule_homonym_with_non_module(self) -> None:
  )
 
  def test_module_is_not_namespace(self) -> None:
- def debug_result():
- import sysconfig
- from importlib.util import _find_spec_from_path
-
- tested = list(EXT_LIB_DIRS)[0].rsplit("/", maxsplit=1)[-1]
- spec = _find_spec_from_path(tested)
- return (
- f"SYCONFIG PATHS: {sysconfig.get_paths()}\n"
- f"EXT_LIB_DIRS: {EXT_LIB_DIRS}\n"
- f"TESTED: {tested}\n"
- f"SPEC VARS: {vars(spec)}"
- )
-
  self.assertFalse(util.is_namespace("tests.testdata.python3.data.all"))
  self.assertFalse(util.is_namespace("__main__"))
  self.assertFalse(
  util.is_namespace(list(EXT_LIB_DIRS)[0].rsplit("/", maxsplit=1)[-1]),
- debug_result(),
  )
  self.assertFalse(util.is_namespace("importlib._bootstrap"))