Index: schedule-1.1.0/test_schedule.py
===================================================================
--- schedule-1.1.0.orig/test_schedule.py	2021-03-07 11:49:24.000000000 +0100
+++ schedule-1.1.0/test_schedule.py	2021-09-08 10:48:44.066906764 +0200
@@ -1,8 +1,11 @@
 """Unit tests for schedule.py"""
 import datetime
 import functools
-import mock
 import unittest
+try:
+    import unittest.mock as mock
+except ImportError:
+    import mock
 
 # Silence "missing docstring", "method could be a function",
 # "class already defined", and "too many public methods" messages: