indeterminate

Use rpsrunner.py to play unranked matches on your computer.

Source code:

import random
wbt = {"R":"P","P":"S","S":"R"}

if not input:
    output = 'S'
    history = 'S'
else:
    history += input+'O'
    l = 1
    while history.find(history[(l*-3):]) != len(history)-(l*3):
        l+=1
    l-=1
    li = [i for i in range(len(history)) if history.startswith(history[(l*-3):], i)]
    del li[-1]
    if len(li) > 0:
        output = wbt[history[random.choice(li)+(3*l)]]
    else:
        output = wbt[history[random.randint(0,len(history)/3-1)*3+1]]
history += output