F-strings in match case

Ideas
1

Allow f-strings to be evaluated in a match case setting

match Foo:
  case f"Greater than {Bar}":
    print("Foo > Bar")

This currently raises a SyntaxError: patterns may only match literals and attribute lookups

2

That looks more like a job for regular expressions, to me. F-strings aren’t really matching tools, they’re formatting tools.

3

Nice idea, but this would be very hard to do in the case that there are format specifiers.

4

You can accomplish something very similar with

match Foo:
    case b if b == f"Greater than {Bar}":
        print("Foo > Bar")

Which I’ll grant you is a little more verbose, but removes the need to evaluate cases as arbitrary expressions (and f-strings can contain arbitrary expressions).

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