Regular Expression email address Python

Question

I want to extract top level domains from email addresses with Python. I want to use a regular expression to get everything after the FIRST dot after the @ symbol

E.g.

tony.manero@testing.com
ted.br@top.domain.us

Expected result

.com
.domain.us

How can I use regex to achieve this result?

Pushpesh Kumar Rajwanshi · Accepted Answer · 2018-11-19T15:42:01.480

2

You can try this regex and capture group 1 content,

@.*?\.(.*)

Demo

Explanation:

@.*?. --> Matches @ character followed by any characters in non-greedy way followed by a literal dot
(.*) --> Capture whatever remains after that which is top level domain name

Here is a sample python code,

import re
s = ['tony.manero@testing.com','ted.br@top.domain.us']
for a in s:
    print (a,' --> ',re.findall('@.*?\.(.*)',a))

This prints following output,

tony.manero@testing.com  -->  ['com']
ted.br@top.domain.us  -->  ['domain.us']

edited Nov 19 '18 at 15:42

answered Nov 19 '18 at 15:35

Pushpesh Kumar Rajwanshi

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Thank you! what if I'd like to capture everything after the @ symbol, without stopping at the first dot? – Alex Nov 19 '18 at 15:47
Little change in regex needed and it becomes @(.*) – Pushpesh Kumar Rajwanshi Nov 19 '18 at 15:48

Regular Expression email address Python

1 Answers1