So, I was trying to learn how to use GAE, so I used an app template from Github to make a test app.
That worked fine, but now when I want to start working on my real app...
I get this error after running
gcloud app deploy:
ERROR: (gcloud.app.deploy) Service [default] uses unsupported Python 2.5 runtime. Please use [runtime: python27] instead.
The earlier app must have used Python 27, but I want to use Python 3.
However, I cannot find a way to change the runtime for the default service.
Is there any way to do this, and if not, what should I do about it?