When I am executing an utility, blab, and it will ask yes or no for confirmation, what can I do? Thanks,
The code is as below:
proc = subprocess.Popen("blab delete {}".format(num), shell=True, stderr=subprocess.STDOUT, stdin=subprocess.STDIN) stdout_value = proc.communicate()[0] Popen.communicate() documentation:
If you want to send data to process's stdin using python, create the Popen object with stdin=PIPE. Similarly, to get anything other than None in the result tuple, you need to give stdout=PIPE and/or stderr=PIPE too.
from subprocess import PIPE, Popen, STDOUT process = Popen("blab delete {}".format(num), shell=True, stdin=PIPE, stdout=PIPE, stderr=STDOUT) output = process.communicate(input=b'yes')[0] output = output.decode('utf-8') 
process.communicate(input=b'some answer') repeatedly.