退屈なことはPythonにやらせよう演習プロジェクト8.10.2

sakubun.py

# sample.txtの名刺や形容詞を置き換えて、表示して、sample2.txtに保存

import re

# sample.txtの中身を読み込む
sample_file = open('./sample.txt')
sample_txt = sample_file.read()

# パターンマッチを定義する
word_regex = re.compile(r'ADJECTIVE|NOUN|VERB')

# マッチする限り置換を繰り返す
while True:
    mo = word_regex.search(sample_txt)
    if mo is None:
        break
    if mo.group() == 'ADJECTIVE':
        repl_word = input('input an ' + mo.group() + '\n')
    else:
        repl_word = input('input a ' + mo.group() + '\n')
    sample_txt = word_regex.sub(repl_word, sample_txt, 1)

# 表示して保存
print(sample_txt)
sample2_file = open('./sample2.txt', 'w')
sample2_file.write(sample_txt)
sample2_file.close()
sample_file.close()

sample.txtの中身：

The ADJECTIVE panda walked to the NOUN and then VERB. A nearby NOUN was unaffected by these events.

The ADJECTIVE NOUN VERB to the NOUN and then VERB.