Python run shell command and emulate user input

问题

How can i from a python script emulate user data like:

Say i run os.system('grunt init:gruntfile'), and i want the python script automatically to 'enter' some data, so instead of the user inputs the data that the shell command asks for, the python script enters some data hard-coded in the script?

Hope my question makes sense and that someone can help. Thank you in advance, adam

回答1:

pexpect will probably fit your bill if plain old subprocess doesn't.

From the pexpect site:

For example::

child = pexpect.spawn('scp foo myname@host.example.com:.')
child.expect ('Password:')
child.sendline (mypassword)

来源：https://stackoverflow.com/questions/10372012/python-run-shell-command-and-emulate-user-input