CODEWITHSUNDEEP
pythonregexregex-group
qbbq
qbbq

Reputation: 367

How would I extract a substring from a string that contains parentheses using python?

I have the following string:

The quick brown fox, the cat in the (hat) and the dog in the pound. The Cat in THE (hat):

I need help with extracting the following text:

1) the cat in the (hat)

2) The Cat in THE (hat)

I have tried the following:

p1 = """The quick brown fox, the cat in the (hat) and the dog in the pound. The Cat in THE (hat)"""
pattern = r'\b{var}\b'.format(var = p1)
with io.open(os.path.join(directory,file), 'r', encoding='utf-8') as textfile:
    for line in textfile:
        result = re.findall(pattern, line)
print (result)

Upvotes: 1

Views: 246

Answers (1)

TomNash
TomNash

Reputation: 3288

Strictly matching that string, you can use this regex. To generalize for the future, the (?i) in the beginning makes it ignore the case and use \ to escape the parentheses.

import re
regex = re.compile('(?i)the cat in the \(hat\)')
string = 'The quick brown fox, the cat in the (hat) and the dog in the pound. The Cat in THE (hat):'
regex.findall(string)

Result:

['the cat in the (hat)', 'The Cat in THE (hat)']

Upvotes: 4

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