Find a specific pattern in a string using regex

Question

RT @Complex: 'Atlanta' Season 2 director: "If the first season is College Dropout, this one is Late Registration." 

@pastorjnelson Pastor JN, I have spoken to you before.  But, lol, you didnt know who I was.  Or maybe, I didnt know2026

Suppose I have two strings shown above. I want to fetch a specific string pattern from a given line @____ using Python regex. How can I do that? The expected output should be @Complex for the first string and @pastorjnelson for the second string.

`re.findall(r'@\S+', text)` – RomanPerekhrest Feb 28 '18 at 16:22 — RomanPerekhrest, Feb 28 '18 at 16:22

score 0 · Answer 1 · answered Feb 28 '18 at 16:23

0

import re
s = """RT @Complex: 'Atlanta' Season 2 director: "If the first season is College Dropout, this one is Late Registration." 
@pastorjnelson Pastor JN, I have spoken to you before.  But, lol, you didnt know who I was.  Or maybe, I didnt know2026 
"""

print re.findall("@\w+", s)

Output:

['@Complex', '@pastorjnelson']

answered Feb 28 '18 at 16:23

Rakesh

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When I do this it gives me like [u'@Complex'] and [u'@pastorjnelson'] in return. I want just text like @Complex – stephen Feb 28 '18 at 16:27
the snippet is returning you a list. You can access your required element using index 0. EX: print re.findall("@\w+", s)[0] – Rakesh Feb 28 '18 at 16:29
I have two different string. So I think it won't return list in my case. – stephen Feb 28 '18 at 16:36

ACascarino · Answer 2 · 2018-02-28T16:59:07.963

0

@.+?\W matches both of the above examples.

@ is the literal @

.+? searches for an arbitrary sequence of at least one non-line break characters

\W matches a non-alphanumeric character.

edited Feb 28 '18 at 16:59

answered Feb 28 '18 at 16:24

ACascarino

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IT says invalid expression for @.*+\W – stephen Feb 28 '18 at 16:35
Ah yes, you're quite right - this is what happens when I make changes without testing them! Should have fixed it now – ACascarino Feb 28 '18 at 16:58

Find a specific pattern in a string using regex

2 Answers2