Fix some directory issues

jedi/file_io.py

@@ -71,7 +71,7 @@ class ZipFileIO(file_io.KnownContentFileIO, FileIOFolderMixin):
     def get_last_modified(self):
         try:
             return os.path.getmtime(self._zip_path)
-        except (FileNotFoundError, PermissionError):
+        except (FileNotFoundError, PermissionError, NotADirectoryError):
             return None
 
 

jedi/inference/gradual/typeshed.py

@@ -38,7 +38,7 @@ def _create_stub_map(directory_path_info):
     def generate():
         try:
             listed = os.listdir(directory_path_info.path)
-        except FileNotFoundError:
+        except (FileNotFoundError, NotADirectoryError):
             return
 
         for entry in listed: