检查字符串是否包含一组字符串中的任何项？

Question

I have a text file that has a sentence at each line. And I have a word list. I just want to get only the sentences which contain at least one word from the list. Is there a pythonic way to do that?

Answer 1

sentences = [line for line in f if any(word in line for word in word_list)]

这里f是您的文件对象，例如，如果file.txt是文件名并且与脚本位于同一目录中，则可以将其替换为open('file.txt') 。

Answer 2

Using set.intersection :

with open('file') as f:
    [line for line in f if set(line.lower().split()).itersection(word_set)]

or with filter :

filter(lambda x:word_set.intersection(set(x.lower().split())),f)

Answer 3

this will give you a start:

words = ['a', 'and', 'foo']
infile = open('myfile.txt', 'r')
match_sentences = []

for line in infile.readlines():
    # check for words in this line
    # if match, append to match_sentences list