Calling external program from within python

Diez B. Roggisch deets at
Fri Jul 25 17:28:31 CEST 2008

oj schrieb:
> On Jul 25, 3:44 pm, "Diez B. Roggisch" <de... at> wrote:
>> Because usually if a program *prompts* the user to enter input (and that
>> was what I read from the OP's post), one has to deal with pseudo
>> terminals, not with stdin/out.
> How does the program writing some text before taking input change how
> it takes input?
> If it runs in a terminal and takes input from the user via keyboard,
> as in the user types a response and presses enter, it's most likely
> using stdin, in which case subprocess would be perfect.

Try using SSH with subprocess and prepare to be disappointed when it 
asks for a password.

See this for a discussion:


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