Returning a value using multiprocessing returns a value to the parent process from a child process.
Solution for How to return a value using multiprocessing in Python : You can use multiprocessing.Value to return a value using multiprocessing Call multiprocessing.Value(type, default, lock=False) to create a Value with the array type code type and default value as default.
Call multiprocessing.Process(target=function, args=[value]) to create a process to execute function with arguments to the value created in the previous step. Call Process.start() to start the process. Call Process.join() to block execution until the Process has finished executing.
Call multiprocessing.Value.value to retrieve the return value from the process.