How to auto-terminate a multiprocess.Process() process?

Question

Python

Hello, I need to make a task processing program, each task has a delay in execution and tasks can be dynamically added to the execution queue. I want to do multi-threaded execution of tasks. How can I use multiprocess.Process() to terminate a process automatically without the .join() method?
If this library does not have automatic process termination, then what can be used instead?