diff --git a/Lib/threading.py b/Lib/threading.py
index 94ea2f08178369..744f34653f5476 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -1342,6 +1342,12 @@ def run(self):
             self.function(*self.args, **self.kwargs)
         self.finished.set()
 
+    def __enter__(self):
+        self.start()
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.cancel()
+
 
 # Special thread class to represent the main thread