def create_thread_1(parser):
    return thread_1(parser, opt_arg1=global_var, opt_arg2=global_sync_primitive)

def create_thread_2(parser):
    return thread_2(parser, opt_arg1=global_var, opt_arg3=global_sync_Queue)

def create_thread_3(parser, t1, t2):
    return thread_3(parser, t1, t2)

if __name__ = "__main__":
    parser = configparser() # assume parser has been initializated from a file
    t1 = create_thread_1(parser)
    t2 = create_thread_2(parser)

    t3 = create_thread_3(parser, t1, t2)

    # start threads and continue with process