"Structural pattern matching" for Python, part 1

A lot of these seem to be based on Rust's match feature (it even has the same name!). I agree that this seems out-of-place for Python, and while I think Python's staunch refusal to include switch-like statements is a flaw of the language (and one I'd like to see fixed) I wouldn't be happy with this design. Rust's matching design makes sense in the context of the rest of the language -- you can't just transplant it to another language and hope it fits.