On Fri, Mar 27, 2015 at 6:38 AM, Marko Rauhamaa <ma...@pacujo.net> wrote: > I don't know the answer to your question. A superficial glance at the > relevant asyncio source code (and documentation) suggests you shouldn't > be seeing what you are seeing. > > Tasks are kept in a weak set. Tasks should evaporate as soon as nobody > references them.
Actually I think this explains it. In the OP's while loop, he updates his task list with the line: tasks = asyncio.Task.all_tasks(loop) This creates a strong reference to each of the returned tasks. When the loop comes back around, it calls all_tasks again, creating a second strong reference to each task, then assigns the resulting set to tasks, allowing the original set to be collected. At no point in the loop is there ever not a strong reference to each task. So if asyncio is relying on GC to prune its task set, they will never be cleaned up. To the OP: try deleting the tasks variable after you print it out. I bet this will solve your problem. -- https://mail.python.org/mailman/listinfo/python-list