Use correct TimeoutError alias from the concurrent.futures module

Author: kristjanvalur

src/qasync/__init__.py

@@ -17,7 +17,6 @@
     "asyncWrap",
 ]
 
-from ast import Not
 import asyncio
 import contextlib
 import functools
@@ -28,7 +27,7 @@
 import os
 import sys
 import time
-from concurrent.futures import CancelledError, Future, TimeoutError
+from concurrent.futures import Future
 from queue import Queue
 from weakref import WeakSet
 

tests/test_qthreadexec.py

@@ -2,10 +2,11 @@
 # © 2014 Mark Harviston <mark.harviston@gmail.com>
 # © 2014 Arve Knudsen <arve.knudsen@gmail.com>
 # BSD License
-import time
 import logging
 import threading
+import time
 import weakref
+from concurrent.futures import TimeoutError
 
 import pytest