What are some tips for using pattern matching in Python?

What are some tips for using pattern matching in Python?

Here are a few tips for using pattern matching in Python:

1. Use the match statement for cleaner syntax.
2. Leverage wildcards to simplify patterns.
3. Combine patterns for more complex matching.
4. Use guards to add conditions to your patterns.

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:
        print('10 or less')
``` This checks if `value` is greater than 10.

What about using pattern matching with data classes?

You can match data classes directly! For example:

from dataclasses import dataclass
@dataclass
class Point:
    x: int
    y: int

match point:
    case Point(x, y) if x == y:
        print('Point is on the line y=x')
``` This matches a `Point` object.

Are there any performance considerations I should be aware of?

Yes, while pattern matching is powerful, it can be slower than traditional if-else statements for very complex patterns. Always profile your code if performance is critical.