Using Python's subprocess and Popen in one script to run another Python script which requires user interaction (by raw_input)

Question

The problem I have is as follows, and I will use simple example to illustrate it. I have written a python script that requires user interaction, specifically it uses the ra

Answer 1

You can only call communicate once. Therefore you need to pass all the input at once, i.e. child.communicate("1\n1\n"). Alternatively you can write to stdin:

child = subprocess.Popen("./test.py", stdin=subprocess.PIPE)         

child.stdin.write("1\n")                                                       
child.stdin.write("1\n")