python-regexHow to get a group from a regex in Python?

To get a group from a regex in Python, you can use the re.search() method. This method takes a regular expression pattern and a string and searches for that pattern within the string. If the pattern is found, it returns a Match object. The Match object has a group() method which returns the string matched by the regular expression.

Example code

import re

string = 'The quick brown fox jumps over the lazy dog.'
pattern = r'(quick|lazy)'

match = re.search(pattern, string)
if match:
    print(match.group())

Output example

quick

Code explanation

• import re: imports the re module which contains the re.search() method.
• string = 'The quick brown fox jumps over the lazy dog.': creates a string to search for the pattern.
• pattern = r'(quick|lazy)': creates a regular expression pattern to search for.
• match = re.search(pattern, string): searches for the pattern within the string and returns a Match object if found.
• if match:: checks if a Match object was returned.
• print(match.group()): prints the string matched by the regular expression.

Helpful links

• Python Regular Expressions
• Python re.search() Method

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