As much as I admire your attempt to do this with Python, I don’t see why not just use the default OOTB nodes.
Point.Deconstruct is from Wombat package but can be replaced with OOTB nodes as well. Point.X, Point.Y…
Cheers!
Ps. Next time, please post code as code formatted text instead of an image. If the answer wasn’t this obvious, someone would want to re-create the error and re-typing your code from the image is a waste of time. Please read here before posting: How to get help on the Dynamo forums