Python提取包含不包括数字字符串的单词的句子

Question

我有一个类似的问题，在这个链接Python extract sentence containing word 中讨论过，但我不想用数字字符串结束句子。

例如：

The apt subtitle for the binoculars will be 9015.18.1190, CTS, which provides for binoculars. The rate of duty on this will be free.

当我尝试这个时：

import re
txt="The apt subtitle for the binoculars will be 9015.18.1190, CTS, which provides for binoculars. The rate of duty on this will be free."
define_words = 'apt subtitle'
print (re.findall(r"([^.]*?%s[^.]*\.)" % define_words,txt))

实际输出：

The apt subtitle for the binoculars will be 9015.

但是预期的输出是：

The apt subtitle for the binoculars will be 9015.18.1190, CTS, which provides for binoculars.

有人可以帮我实现预期的输出吗？

Answer 1

使用lookahead regex 断言匹配以. 结尾，后面不跟数字

这适用于您的示例输入，但可能需要稍微调整以更通用以处理更多案例。

import re
txt="The apt subtitle for the binoculars will be 9015.18.1190, CTS, which provides for binoculars. The rate of duty on this will be free."
define_words = 'apt subtitle'
print (re.findall(r"([^.]*?%s.*?\.)(?!\d)" % define_words,txt))
# The apt subtitle for the binoculars will be 9015.18.1190, CTS, which provides for binoculars.