Automate 'start scumming' -- repeatedly generating characters till an advantageous starting inventory is found.

startscum.py

USERNAME = 'NAOUSERNAME'
PASSWORD = 'NAOPASSWORD'

import pexpect, traceback, sys, time

def scum(n):
  try:
     #n = pexpect.spawn('nethack')
     print "BEGIN"
     r = n.expect(['Shall I pick', 'Restoring save file', 'Too many hacks', 'stale' ])
     print "START STATE", r
     if r == 4:
       n.send('p')
       return False
     if r == 3:
       print "Game in progress."
       time.sleep(11)
       n.sendline('#quit')
       n.send('nnn')
       n.sendline('')
       return False       
     if r == 2:
       print "Too many locks."
       sys.exit(-1)
     if r == 1:
       print "Attempting to kill running game"
       n.sendline('#quit')
       n.send('nnn')
       n.sendline('')
       return False       
     n.send('nwgm')
     print "SENT CHARACTER"
     n.expect('Go bravely')
     print "GO BRAVELY"
     n.sendline('') 
     n.expect('welcome to')
     print "WELCOME"
     n.send('i')
     print "REQUEST INVENTORY"
     r = n.expect([r'(ring of polymorph$)|(wand of polymorph)', r'(ring of polymorph control)', r'.*smoky.*', r'\(end\)'], timeout=1)
     print "Results: ", r
     if r != 3:
       return True 
     n.sendline(' ')
     n.sendline('#quit')
     #n.send('nnnn')
     n.send('y')
     n.send('n')
     n.send('n')
     n.send('n')
     n.sendline('')
     return False
  except SystemExit:
     sys.exit(-1)
  except KeyboardInterrupt:
     sys.exit(-1)
  except:
     traceback.print_exc()
     n.interact()

if __name__ == '__main__':
  i = False
  c = 0
  n = pexpect.spawn('telnet nethack.alt.org')
  n.setecho(True)
  n.logfile = open('startscum.log', 'w')
  #n.logfile = sys.stdout
  n.expect('=>')
  n.send('l')
  n.expect('Please enter your username')
  n.sendline(USERNAME)
  n.expect('Please enter your password') 
  n.sendline(PASSWORD)
  n.expect('=>')
  n.send('p')
  time.sleep(0.1)
  #scum(n)
  #n.interact()
  #sys.exit(-1)
  while not i:
   c = c + 1
   print "Scum try: ", c
   i = scum(n)
 
   if i:
     print "Scum successful!"
     sys.exit(1)
   else:
     print "RESTARTING GAME EXPECTING PROMPT"
     n.expect('=>')
     print "PROMPT FOUND SENDING p"
     n.send('p') 
   time.sleep(0.1)