Python Regex - Sentence Not Including Strings

I have a series of sentences I am trying to decipher. Here are two examples: Valid for brunch on Saturdays and Sundays and Valid for brunch I want to compose a regex that identif

Solution 1:

^(?!.*saturday)(?!.*sunday).*(brunch)

You can try in this way.Grab the capture.See demo.

https://regex101.com/r/nL5yL3/18

Solution 2:

use a list comprehension , if you have all the sentences in a list like sentences you can use the following comprehension :

import re
[re.search(r'\bbranch\b',s) for s in sentences if `saturday` notin s and'sunday'notin s ]

Solution 3:

I would do like this,

>>> sent = ["Valid for brunch on Saturdays and Sundays", "Valid for brunch"]
>>> sent
['Valid for brunch on Saturdays and Sundays', 'Valid for brunch']
>>> for i in sent:
        ifnot re.search(r'(?i)(?:saturday|sunday)', i) and re.search(r'brunch', i):
            print(i)


Valid for brunch