Q : run a python function in Django project but output repeat result

Question

I want to detect the number of files when run a django project.But there are two output results in terminal .

def fileChecker(path):
    
    print('Child process %s.' % os.getpid())
    dirs = os.listdir(path)
    size = len(dirs)

    while True :
        tdirs = os.listdir(path)
        if len(tdirs) > size :
            print( 'folder contains %s files '%( len(tdirs)  ) )

        size = len(tdirs)
        dirs = tdirs
        

def main():
    """Run administrative tasks."""
    print('Child process %s.' % os.getpid())
    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'parkSystem.settings')
    try:
        from django.core.management import execute_from_command_line
    except ImportError as exc:
        raise ImportError(
            "Couldn't import Django. Are you sure it's installed and "
            "available on your PYTHONPATH environment variable? Did you "
            "forget to activate a virtual environment?"
        ) from exc

    execute_from_command_line(sys.argv)
    


if __name__ == '__main__':    
    print('Parent process %s.' % os.getpid())
    p1 = Process( target=main )
    p2 = Process( target=fileChecker, args=('.\\pictures\\car_img',))
    p1.start()  
    p2.start()
    p1.join()
    p2.join()

the terminal like this : enter image description here