What are the limits of pattern matching in Python 3.10?

What are the limits of pattern matching in Python 3.10?

In Python 3.10, pattern matching allows for more expressive and readable code, but it has some limitations. For instance, it doesn't support matching against arbitrary expressions, and the patterns must be defined in a specific way.

Can you give me an example of a pattern that won't work?

Sure! For example, trying to match a list with a variable length directly using a wildcard won't work. You need to specify the structure explicitly.

What about matching nested data structures?

Nested data structures can be matched, but you need to ensure that each level of the structure is correctly defined in your pattern. For instance, you can match a tuple containing a list.

Are there any performance concerns with using pattern matching?

Yes, while pattern matching can make code cleaner, it may introduce some overhead compared to traditional if-else statements, especially in complex patterns.