Add 6.9 theory

6_tasks/6_9_cancelation.py

@@ -0,0 +1,23 @@
+import asyncio
+
+
+async def cancel_test():
+    try:
+        await asyncio.sleep(5)
+    except asyncio.CancelledError:
+        print("Printing after cancel")
+    finally:
+        return 5
+
+
+
+async def main():
+    task = asyncio.create_task(cancel_test())
+    await asyncio.sleep(0.1)
+    print(task.cancelling())
+    await asyncio.sleep(0.1)
+    print(task.cancelled())
+    print(task.result())
+    return task
+
+asyncio.run(main())