Revert "consider that namespace package specs might have the loader set"

This reverts commit 23fb4e0.

Signed-off-by: Filipe Laíns <[email protected]>

Author: FFY00

Lib/importlib/_bootstrap.py

@@ -755,18 +755,17 @@ def _init_module_attrs(spec, module, *, override=False):
                 loader = NamespaceLoader.__new__(NamespaceLoader)
                 loader._path = spec.submodule_search_locations
                 spec.loader = loader
-        if _bootstrap_external and isinstance(loader, _bootstrap_external.NamespaceLoader):
-            # While the docs say that module.__file__ is not set for
-            # built-in modules, and the code below will avoid setting it if
-            # spec.has_location is false, this is incorrect for namespace
-            # packages.  Namespace packages have no location, but their
-            # __spec__.origin is None, and thus their module.__file__
-            # should also be None for consistency.  While a bit of a hack,
-            # this is the best place to ensure this consistency.
-            #
-            # See # https://docs.python.org/3/library/importlib.html#importlib.abc.Loader.load_module
-            # and bpo-32305
-            module.__file__ = None
+                # While the docs say that module.__file__ is not set for
+                # built-in modules, and the code below will avoid setting it if
+                # spec.has_location is false, this is incorrect for namespace
+                # packages.  Namespace packages have no location, but their
+                # __spec__.origin is None, and thus their module.__file__
+                # should also be None for consistency.  While a bit of a hack,
+                # this is the best place to ensure this consistency.
+                #
+                # See # https://docs.python.org/3/library/importlib.html#importlib.abc.Loader.load_module
+                # and bpo-32305
+                module.__file__ = None
         try:
             module.__loader__ = loader
         except AttributeError: