Check if any string in a list is contained within any string in another list

Question

I have a list of news titles and would like to check if any title contains any of the keywords in a list.

e.g.

newstitle =['Python is awesome', 'apple is tasty', 'Tom cruise has new movie']
tag = ['Python','Orange', 'android']

If any keywords in tag are in newstitle, I want it to return True.

I know how to do it with a single tag using:

any('Python' in x for x in newstitle)

But how to do it with multiple keywords?

rok · Accepted Answer · 2020-04-25T15:40:54.090

5

The below code should achieve the required:

any(t in x for x in newstitle for t in tag)

From the docs:

A list comprehension consists of brackets containing an expression followed by a for clause, then zero or more for or if clauses. The result will be a new list resulting from evaluating the expression in the context of the for and if clauses which follow it.

edited Apr 25 '20 at 15:40

answered Apr 25 '20 at 15:33

rok

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I am confused at the beginning but I get it! Thanks – Max Cheung Apr 25 '20 at 15:37
See also https://treyhunner.com/2015/12/python-list-comprehensions-now-in-color/. – Karl Knechtel Apr 25 '20 at 15:56

Alex · Answer 2 · 2020-08-08T13:42:44.127

0

for each newstitle in the list iterate through tag list for tag values in newstitle.

newstitles = ['Python is awesome', 'apple is tasty', 'Tom cruise has new movie']
tags = ['Python', 'Orange', 'android']

for newstitle in newstitles:
   for tag in tags:
      if newstitle.find(tag) != -1:
           #Do your operation...

edited Aug 08 '20 at 13:42

answered Aug 08 '20 at 12:00

Alex

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code only doesn't answer the question require to add some explanation – Umutambyi Gad Aug 08 '20 at 12:40
for each newstitle in the list we loop for tag list to see if tag values are in the newstitle... – Alex Aug 08 '20 at 13:32
just [edit](https://stackoverflow.com/posts/63315121/edit) to add the description on the question – Umutambyi Gad Aug 08 '20 at 13:34

score 0 · Answer 3 · answered Mar 07 '23 at 09:05

0

With regex (regular expressions), you can also check each newstitle for tags with

import re
for newstitle in newstitles:
    re.search('|'.join(tags), newstitle)`

answered Mar 07 '23 at 09:05

Christabella Irwanto

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Check if any string in a list is contained within any string in another list

3 Answers3