属性错误:'int'对象没有属性'x'

I realize this is a common topic for posts here, however, I can't seem to find one example that really helped me fix the problem. I'm trying to run a script that will add two new fields (x and y coords) to a shapefile then populate those fields with X and Y coords using the code block. This is for AcrGIS 10.2.2, but I don't think the problem is a ArcGIS problem. Script below:I realize this is a common topic for posts here