CODEWITHSUNDEEP
pythonregex
English Grad
English Grad

Reputation: 1395

Python Regex separating numbers after a dash

This is the regex I am using:

date = "1981-89"
date = re.findall(r'\d+', date)

if the date is 1981-89 this returns [1981],[89]. What do I add to the regex to ignore anything after the dash including the dash itself?

Thanks!

Upvotes: 1

Views: 2102

Answers (3)

anubhava
anubhava

Reputation: 784998

What do I add to the regex to ignore anything after the dash including the dash itself?

You can use this regex:

date = "1981-89"
date = re.match(r'\d+(?=-)', date).group()
// 1981

(?=-) is a lookahead that makes sure we are only matching number that is followed by a hyphen.

Upvotes: 0

Malik Brahimi
Malik Brahimi

Reputation: 16711

If you need to use regular expressions, use the first element of a match search:

re.match(r'(\d+)', date).group() # matching using parenthesis in regex

Upvotes: 3

Kasravnd
Kasravnd

Reputation: 107287

You can remove it with re.sub :

>>> re.sub(r'-.*','',date)
'1981'

Upvotes: 2

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