What are the best practices for pattern matching in Python 3.10?

What are the best practices for pattern matching in Python 3.10?

In Python 3.10, best practices for pattern matching include using clear and descriptive patterns, leveraging guards for additional conditions, and keeping patterns simple to enhance readability.

Can you give an example of using guards in pattern matching?

Sure! Here's an example:

match value:
    case x if x > 10:
        print('Greater than 10')
    case x if x < 10:
        print('Less than 10')
    case _:
        print('Exactly 10')

This uses guards to add conditions to the patterns.

What should I avoid when using pattern matching?

Avoid overly complex patterns that can confuse readers, and don't use pattern matching for cases where simpler conditional statements would suffice.

Are there any performance considerations with pattern matching?

Yes, while pattern matching is generally efficient, be cautious with deeply nested patterns as they can impact performance. Always test for performance in critical sections of your code.