Is there a way to convert a kubernetes manifest yaml to pulumi python SDK code ?

You could use the

ConfigFile

class to use the YAML file directly: https://www.pulumi.com/docs/guides/crosswalk/aws/eks/#deploying-existing-kubernetes-yaml-config-to-your-eks-cluster

Maybe piping https://github.com/sl1pm4t/k2tf and https://github.com/pulumi/tf2pulumi for typescript at least?