Press Enter As Command Input

I have an installer of an application. It has .sh and .bat for *nix/windows os. In the scripts it will do something and hang there, waiting some other things to be done, then need

Solution 1:

One way is to use is to use the raw_input method!

# Codeprint"Please press ENTER to continue!"
raw_input()
# more code

Solution 2:

You need to supply a newline on the installer's stdin.

One way:

subprocess.Popen('sh abc.sh < a_file_that_you_prepared.txt',
                 shell=True,
                 stdout=subprocess.PIPE)

Another, roughly equivalent to the first:

input_file = open('a_file_that_you_prepared.txt', 'r')
subprocess.Popen('sh abc.sh',
                 shell=True,
                 stdout=subprocess.PIPE,
                 stdin=input_file)
input_file.close()

Another way -- might work, might not:

subprocess.Popen('sh abc.sh < /dev/null',
                 shell=True,
                 stdout=subprocess.PIPE)

Third way -- can easily cause deadlock between your program and installer:

x = subprocess.Popen('sh abc.sh',
                 shell=True,
                 stdout=subprocess.PIPE,
                 stdin=subprocess.PIPE)

...

x.stdin.write('\n')