shikanoko.py

import random

print('ぬん')

letters = {
    'し': {'population': ['か', 'た'], 'weights': [0.5, 0.5]},
    'か': {'population': ['の'], 'weights': [1]},
    'の': {'population': ['こ'], 'weights': [1]},
    'こ': {'population': ['の', 'こ', 'し'], 'weights': [0.5, 0.25, 0.25]},
    'た': {'population': ['ん'], 'weights': [1]},
    'ん': {'population': ['た', '　'], 'weights': [0.5, 0.5]},
    '　': {'population': ['　', 'し'], 'weights': [0.5, 0.5]},
    }

recent = []

print('し', end='')
recent.append('し')

random.seed()
while 1:
  choices = letters[recent[-1]]
  next = random.choices(choices['population'], choices['weights'])[0]
  print(next, end='')
  recent.append(next)
  if len(recent) > 15:
    del recent[0]
  if ''.join(recent) == 'しかのこのこのここしたんたん' or ''.join(recent) == '　しかのこのこのここしたんたん':
    break