You will need to use a multiprocessing library. You will need to spawn a new process and provide the code to it as an argument. For example,
from multiprocessing import Process
def loop_a(): for i in range(5): print("a") def loop_b(): for i in range(5): print("b") Process(target=loop_a).start() Process(target=loop_b).start()
This might process different outputs at different times. This is because we don't know which print will be executed when.