Python 3.7 Local Development Server Options for new app engine apps

Question

I have an app-engine app that is deployed and running on the standard Python3 runtime. I am also able to run it locally using normal commands like flask run. But I am unable to run it the way I could run apps in the 2.7 runtime with dev_appserver.py. I am using the latest gcloud version, but running dev_appserver.py results in:

ERROR: Python 3 and later is not compatible with the Google Cloud SDK. Please use Python version 2.7.x.

I assumed we just aren't supposed to do it this way any more until it saw: https://cloud.google.com/appengine/docs/standard/python3/tools/local-devserver-command

Which starts with:

Python 3.7 Local Development Server Options

Usage:
dev_appserver.py [options] yaml_path [files...]

Is dev_appserver.py compatible with Python3 or not (maybe I somehow have an old version in my path)? If not, is there a new way to run apps locally that will adhere to the app.yaml(like treating static paths correctly) and give other niceties like the local data store that dev_appserver.py provided?

Answer 1

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