Debug and list all coroutine pending by future in python asyncio

Question

I have a production code that heavily used asyncio.semaphore module which is suspected to have deadlock problem. I already found some solution of how to attach to running python code with unix signal, debug with ipdb.set_trace() and list all tasks on event loop with asyncio.Task.all_tasks(). Can I further inspect into the stack frame of each task or viewing each line of coroutine which is currently pending by futures on ipdb?

Answer 1

As OP observes, further inspections may be obtained with

[*map(asyncio.Task.print_stack, asyncio.Task.all_tasks())]

(OP is certainly free to self-answer.)