Update test/asynchronous/test_periodic_executor.py

Co-authored-by: Noah Stapp <noah@noahstapp.com>

Author: aclark4life

test/asynchronous/test_periodic_executor.py

@@ -146,12 +146,11 @@ async def test_wake_causes_early_run(self):
             woken = asyncio.Event()
 
         async def target():
-            call_count[0] += 1
-            if call_count[0] == 1:
+            nonlocal call_count
+            call_count += 1
+            if call_count == 1:
                 woken.set()
-            if call_count[0] >= 2:
-                return False
-            return True
+            return call_count < 2
 
         self.executor = _make_executor(interval=30.0, min_interval=0.01, target=target)
         self.executor.open()
@@ -161,7 +160,7 @@ async def target():
             await asyncio.wait_for(woken.wait(), timeout=2)
         self.executor.wake()
         await self.executor.join(timeout=3)
-        self.assertGreaterEqual(call_count[0], 2)
+        self.assertGreaterEqual(call_count, 2)
 
     async def test_open_after_target_returns_false(self):
         called = [0]