Actually import IsADirectoryError

jedi/_compatibility.py

@@ -360,11 +360,6 @@ try:
 except NameError:
     FileNotFoundError = IOError
 
-try:
-    NotADirectoryError = NotADirectoryError
-except NameError:
-    NotADirectoryError = IOError
-
 try:
     IsADirectoryError = IsADirectoryError
 except NameError:

jedi/api/project.py

@@ -1,7 +1,7 @@
 import os
 import json
 
-from jedi._compatibility import FileNotFoundError, NotADirectoryError, PermissionError
+from jedi._compatibility import FileNotFoundError, PermissionError, IsADirectoryError
 from jedi.api.environment import SameEnvironment, \
     get_cached_default_environment
 from jedi.api.exceptions import WrongVersion