initilize a memory zone in python

[Mug]

hello, i'm new in python, i used to program in C,
i have a small problem, i tryed to do some serial port things
manipulation
with python.
i have something like:

import sys,termios

fd = sys.stdin.fileno()
term_conf=termios.tcgetattr(fd);

now i want to modify the actuall values in term_conf  zone to zero
i don't see how to do it,
in C we can do : bzero(&term_conf,sizeof(struct termios));
i want to know if it exist a similar function in python, thanks