does anyone have working GCP GKE python example I could take a look at?

I'm not aware of a GKE specific example, but we have examples for the "generic" Kubernetes provider itself at https://github.com/pulumi/pulumi-kubernetes/tree/master/tests/examples/python.

Thanks I’ll take a look at these but have already started down developing my own

Awesome - we'd love to have an example at https://github.com/pulumi/examples.