Simple python script which prints player winning ratio from gogui-twogtp result sgf files.

print_twogtp_winratio.py

from __future__ import division

import re
import sys

from collections import defaultdict

is_alternate_game = False
if len(sys.argv) > 1:
    is_alternate_game = sys.argv[1] in ('--alternate', '-a')
n_games = 0
n_unknown = 0
player = {}
winner = defaultdict(int) 
for line in sys.stdin:
    pb = re.findall(r'(?:\bPB\[(.+?)\])', line)
    pw = re.findall(r'(?:\bPW\[(.+?)\])', line)
    result = re.findall(r'(?:\bRE\[(.+?)\])', line)
    if pb and (is_alternate_game is False or 'B' not in player):
        player['B'] = pb[0]
    if pw and (is_alternate_game is False or 'W' not in player):
        player['W'] = pw[0]
    if result:
        n_games += 1
        if 'B' == result[0][0].upper():
            winner[player['B']] += 1
        elif 'W' == result[0][0].upper():
            winner[player['W']] += 1
        else:
            n_unknown += 1

for p in player.values():
    sys.stdout.write('[{:s}] {:3.2f} % ({:d}/{:d})\n'.format(
        p, winner[p]*100/n_games, winner[p], n_games))