How to automate user input at the command prompt?

[Méta-MCI]

Hi!

I had try with pipes & subprocess. Unfortunaly, when dos-commandline show a 
text who question for Yes/No, this text is not available in subprocess/pipe 
;  => and block!
And then, I can't send "Y" to the stdin...

I test with:
     MD  TOTO
     RD  TOTO/S

(I know,  RD TOTO/S/Q run Ok, but I search another solution).

*sorry for my bad english*

Michel Claveau