Extract string within parentheses - PYTHON

Question

I have a string "Name(something)" and I am trying to extract the portion of the string within the parentheses!

Iv'e tried the following solutions but don't seem to be getting the results I'm looking for.

n.split('()')

name, something = n.split('()')

Solution 1

You can use a simple regex to catch everything between the parenthesis:

>>> import re
>>> s = 'Name(something)'
>>> re.search('\(([^)]+)', s).group(1)
'something'

The regex matches the first "(", then it matches everything that's not a ")":

• \( matches the character "(" literally
• the capturing group ([^)]+) greedily matches anything that's not a ")"

Solution 2

as an improvement on @Maroun Maroun 's answer:

re.findall('\(([^)]+)', s)

it finds all instances of strings in between parentheses

Solution 3

You can use split as in your example but this way

val = s.split('(', 1)[1].split(')')[0]

or using regex

Solution 4

You can use re.match:

>>> import re
>>> s = "name(something)"
>>> na, so = re.match(r"(.*)\((.*)\)" ,s).groups()
>>> na, so
('name', 'something')

that matches two (.*) which means anything, where the second is between parentheses \( & \).

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Comments

[Admin]

Thanks! makes sense, however i'm getting the error that re is not defined, do you need to import a library for this function?

[Maroun]

@olly_t import re

[Bharath Kumar]

i/p cmd = (0, 45, -4, -9) after print('cmd =',cmd.split('(', 1)[1].split(')')[0]) o/p cmd = 0, 45, -4, -9