ask.py

#!/usr/bin/env python2
"""
Processes an stdin and prompts for confirmation
"""

import sys

def process():
    """
    Processes an stdin and prompts for confirmation
    """
    input_value = sys.stdin.read()
    sys.stdin = open('/dev/tty')

    old_stdout = sys.stdout
    try:
        sys.stdout = sys.stderr
        print input_value.strip()
        selected_option = raw_input('Continue (y/N)? ')
    finally:
        sys.stdout = old_stdout

    if selected_option == 'y':
        print input_value
    else:
        sys.exit(1)

process()