Using Python to run executable and fill in user input

Question

I\'m trying to use Python to automate a process that involves calling a Fortran executable and submitting some user inputs. I\'ve spent a few hours reading through similar

Answer 1

By the time, you reach ps.communicate('argument 2'), ps process is already closed as ps.communicate('argument 1') waits until EOF. I think, if you want to write multiple times at stdin, you might have to use:

ps.stdin.write('argument 1')
ps.stdin.write('argument 2')