Polot severa figures inside a for loopin

[Jorge Conrado Conforte]

HI, 

I already use the IDL to plot data. Inside a for looping I plot and save my data and kill the window using the wdelete IDL command for close the window automatically. 
Now I'm using the Python to rea several netcdf 2d data. I plot my data and save it. But, I don't know how can I kill the window automatically to plot the next figure. 
Please how can I do this using PYthon, 

Thanks, 

Conrado