CODEWITHSUNDEEP
pythonregexscrapy
user2779095
user2779095

Reputation: 43

how to extract part of string in RegEx

I have a string:

The estimated delivery time will be approximately 5 - 7 business days from the time of order.

I want to extract: 5-7 business days from this string.

I wrote regex: '(^[[0-9][-]]*.*$)'

But it does not works. Thanks.

Upvotes: 0

Views: 164

Answers (3)

Srinivasreddy Jakkireddy
Srinivasreddy Jakkireddy

Reputation: 2819

import re
s="The estimated delivery time will be approximately 5 - 7 business days from the time of order."
re.search('\d+\s*\-\s*\d+.*days',s).group(0)

Upvotes: 0

Netro
Netro

Reputation: 7297

You can use re.search('approximately([\s\S]+business\s+days)',s).group(1). Grouping used to get desired result in regex match/search.

Upvotes: 0

Jerry
Jerry

Reputation: 71598

Your regex is a bit strange...

Try:

r'([0-9]+\s*-\s*[0-9]+) business days'

^ and $ are anchors and will match the beginning and end of the string, which I don't think is what you want here. Also, capture groups is not really necessary, so r'[0-9]+\s*-\s*[0-9]+ business days' should work just fine.

I added the quantifiers + just in case there are more business days. and \s* to provide for any possible spaces.

In your regex, you were having two character classes [[0-9] and [-] and a single literal ] there.

The first character class will match any of [, or any number. The second will match a single hyphen.

The r at the front just makes the string become a raw string. It's usually safer to use raw strings in regexes.

Upvotes: 2

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