How do named groups improve regex maintainability? Give an example.

Problem Statement

Explanation

Named groups label captured parts, so your code reads by meaning rather than index numbers. This reduces off-by-one errors and makes future edits safer. You can access groups by name in match dictionaries, which is clearer for complex patterns such as dates, ids, or log lines.

Code Solution

SolutionRead Only

m=re.search(r'(?P<yyyy>\d{4})-(?P<mm>\d{2})-(?P<dd>\d{2})', s)
year=m.group('yyyy')

Practice Sets

This question appears in the following practice sets:

Python Libraries & Real-World Usage

Next Question

Master Interviews
Anywhere, Anytime

How do named groups improve regex maintainability? Give an example.

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Is Python compiled, interpreted, or both?

Which of these joins two lists to make one new list?

Which loop runs until a condition becomes false?

Which method gives the floor value of a float?

In Python, what is the difference between '/' and '//'?

More from Python

Master Interviews Anywhere, Anytime

How do named groups improve regex maintainability? Give an example.

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Is Python compiled, interpreted, or both?

Which of these joins two lists to make one new list?

Which loop runs until a condition becomes false?

Which method gives the floor value of a float?

In Python, what is the difference between '/' and '//'?

More from Python

Master Interviews
Anywhere, Anytime