鳕鱼和蟒蛇

Question

我正在尝试使用 python 编写一个脚本来将国际象棋位置输入到stockfish 并获得评估。

我的问题是基于此， How to Communicate with a Chess engine in Python?

问题在于 subprocess.pipe。

import subprocess, time
import os

os.chdir('C:\Users\Michael\Downloads\stockfish-6-win\stockfish-6-win\Windows'


engine = subprocess.Popen('stockfish', 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 (eng 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)

put('go depth 15') 
get()
put('eval')
get() 
put('position fen rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1') 
get()

在 stdin=subprocess.PIPE 之后的逗号上出现无效语法错误

感谢任何帮助解决该问题或尝试其他方法。

Answer 1

线

os.chdir('C:\Users\Michael\Downloads\stockfish-6-win\stockfish-6-win\Windows'

缺少右括号。你可能想要

stockfish_cmd = 'C:\\Users\\Michael\\Downloads\\stockfish-6-win\\stockfish-6-win\\Windows\\stockfish'
engine = subprocess.Popen(
    stockfish_cmd, universal_newlines=True,
    stdin=subprocess.PIPE, stdout=subprocess.PIPE)

请注意反斜杠的两倍，尽管我相信在这种情况下它恰好是无害的。

Answer 2

您的第三行缺少)：

os.chdir('C:\Users\Michael\Downloads\stockfish-6-win\stockfish-6-win\Windows'

应该是os.chdir('C:\Users\Michael\Downloads\stockfish-6-win\stockfish-6-win\Windows')

Answer 3

我在github 上放置了一个用于返回Stockfish 位置评估的脚本。还有一个 python 包装器here。