Extract part of a regex match
Note that starting in Python 3.8
, and the introduction of assignment expressions (PEP 572) (:=
operator), it's possible to improve a bit on Krzysztof Krasoń's solution by capturing the match result directly within the if condition as a variable and re-use it in the condition's body:
# pattern = '<title>(.*)</title>'
# text = '<title>hello</title>'
if match := re.search(pattern, text, re.IGNORECASE):
title = match.group(1)
# hello
Try using capturing groups:
title = re.search('<title>(.*)</title>', html, re.IGNORECASE).group(1)
Use (
)
in regexp and group(1)
in python to retrieve the captured string (re.search
will return None
if it doesn't find the result, so don't use group()
directly):
title_search = re.search('<title>(.*)</title>', html, re.IGNORECASE)
if title_search:
title = title_search.group(1)