I am banging my head on my desk using this binding error.. I've checked various of your postings with the BindingExpression route mistake and can't see everything that actually works with my problem. There is without a doubt plenty of code with extension .py that utilizes getters and setters and https://maxestatesgurgaon.fashion.blog/2025/05/12/smart-world-the-edition-sector-66-gurgaon-a-new-era-of-luxury-urban-living/