os.popen2 :URGENT

[Peter Hansen]

Ali Dada wrote:
> 
> small but very urgent question (project rpesentation tommorow!!!)
> 
> i need to call a command line program from python, but the program prompts for a
> user input ('y' for yes or 'n' for no). how can i write, using python, one of
> those values???
> 
> i thought of using something like os.popen('my_program')[1].write('y')
> 
> but it didn't work, the program said: received broken pipe signal

If you want to write to the pipe whose file handle is returned by 
popen(), you must open it with "w" mode, as documented at 
http://www.python.org/doc/2.0/lib/os-newstreams.html

-Peter