Merge pull request #331 from python-adaptive/fix/asyncio-current-task

fix 'asyncio.Task.current_task' -> 'asyncio.current_task'

Author: basnijholt

adaptive/notebook_integration.py

@@ -159,7 +159,7 @@ async def updater():
                 await asyncio.sleep(update_interval)
             event()  # fire off one last update before we die
         finally:
-            if active_plotting_tasks[name] is asyncio.Task.current_task():
+            if active_plotting_tasks[name] is asyncio.current_task():
                 active_plotting_tasks.pop(name, None)
             cancel_button.layout.display = "none"  # remove cancel button