问题
Until yesterday I was successfully using the dev_appserver.py app.yaml --enable_console for my development.
Yesterday I attempted to upgrade to python 3.7 for my development.
The upgrade seemed to be Ok, but now I get the following error message.
server:bones brian$ dev_appserver.py app.yaml --enable_console
ERROR: (dev_appserver) python2: command not found
app.yaml:
application: bones
version: 1
runtime: python37
entrypoint: gunicorn -b :$PORT main:app
api_version: 1
threadsafe: true
handlers:
- url: /static
static_dir: static
- url: /.*
script: main.app
I am using Mac OS X 10.11.6.
Why is dev_appserver even looking for python2? And how can I fix this?
回答1:
It doesnt look like you can fix that:
Running dev_appserver requires the presence of Python 2.7.12+ on your local machine.
https://cloud.google.com/appengine/docs/standard/python3/testing-and-deploying-your-app#local-dev-server
回答2:
I've got a Python 3.7 Google App Engine project and am unable to execute the dev_appserver.py command for the same reason (python2: command not found). For various reasons, it isn't feasible to downgrade to Python 2.7.
I don't think the accepted answer here (that dev_appserver.py is only meant to work with Python 2.7) is accurate; the GAE documentation for Python 3.7 in fact lists dev_appserver.py as an option for local development. This seems more like a gcloud bug.
(Note: I know this would be better as a comment on the previous answer, but because I'm a new-ish SO user, I don't yet have permission to post comments)
来源：https://stackoverflow.com/questions/61503849/google-dev-appserver-throws-error-python2-command-not-found-after-upgrade-to