Greg Ewing wrote:

Eric Nieuwland wrote:

...

... match poly: p0 = Point(x0, y0) p1 = Point(x1, y1) p2 = Point(x2, y2) case Polygon(p0, p1, p2): …

Interesting idea, but what happens if you don't need any setup? Do you have to write

match poly: pass case ...

?

Yes, that would be the idea. Unless you would need to setup variables to be bound in the cases, of course. Without that an if … elif … elif … else structure would be equivalent and possibly preferable.