Basic communication between Python and Stockfish

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I have tried to issue commands to the Stockfish chess engine via Python taking various examples from the web (all pretty similar), but none has worked as intended for me.

Here is one code example which I have tried:

import subprocess, time

engine = subprocess.Popen(
    'stockfish-x64.exe',
    universal_newlines=True,
    stdin=subprocess.PIPE,
    stdout=subprocess.PIPE,
)

def put(command):
    print('\nyou:\n\t'+command)
    engine.stdin.write(command+'\n')

def get():
    # using the 'isready' command (engine has to answer 'readyok')
    # to indicate current last line of stdout
    engine.stdin.write('isready\n')
    print('\nengine:')
    while True:
    text = engine.stdout.readline().strip()
    if text == 'readyok':
        break
    if text !='':
        print('\t'+text)

get()
put('uci')
get()
put('setoption name Hash value 128')
get()
put('ucinewgame')
get()
put('position startpos moves e2e4 e7e5 f2f4')
get()
put('go infinite')
time.sleep(3)
get()
put('stop')
get()
put('quit')

This is supposed to trigger a series of commands to the Stockfish engine, but unfortunately for me it does not get past:

engine:
        Stockfish 2.2.2 JA SSE42 by Tord Romstad, Marco Costalba and Joona Kiiski

and it just hangs there. I have tried multiple very similar code examples, but the same thing happens every time. I suspect the problem is at my end. Could anyone help?

asked 36 secs ago

haranski

1

Basic communication between Python and Stockfish