What are the differences between Python pattern matching and regular expressions?

What are the differences between Python pattern matching and regular expressions?

Python pattern matching, introduced in Python 3.10, offers a more readable and structured way to match patterns in data, while regular expressions are a more traditional method for string matching using a specific syntax.

Can you give me an example of pattern matching in Python?

Sure! Here's a simple example:

match value:
    case 1:
        print('One')
    case 2:
        print('Two')
    case _:
        print('Something else')

How does this compare to using regular expressions?

With regular expressions, you would use the re module. For example:

import re
result = re.match(r'\d+', '123abc')
if result:
    print('Matched!')
``` This is less readable than pattern matching.

When should I use pattern matching instead of regular expressions?

Use pattern matching for structured data and when readability is a priority. Regular expressions are better for complex string manipulations.