How to answer to prompts automatically with python fabric?
Starting from version 1.9, Fabric includes a way of managing this properly.
The section about Prompts in the Fabric documentation says:
The prompts dictionary allows users to control interactive prompts. If a key in the dictionary is found in a command’s standard output stream, Fabric will automatically answer with the corresponding dictionary value.
You should be able to make Fabric automatically answer prompts like this:
with settings(prompts={'Do you want to continue [Y/n]? ': 'Y'}): run('apt-get update') run('apt-get upgrade')
I have used simple echo pipes to answer prompts with Fabric.
run('echo "yes\n"| my_command')
Note: this answer is several years old, and in the mean time fabric has (interestingly similar looking) implementation of this. See the answer by @timothée-jeannin below.
See https://stackoverflow.com/a/10007635/708221
pip install fexpect
from ilogue.fexpect import expect, expecting, run prompts = []prompts += expect('What is your name?','John')prompts += expect('Are you at stackoverflow?','Yes')with expecting(prompts): run('my_command')Fexpect adds answering to prompts to fabric with use of pexpect