在Google App Engine的标准环境中，烧瓶导入失败

Question

I have specified an app.yaml file as follows:

runtime: python
env: standard
# this assumes that the entrypoint is app.py
entrypoint: gunicorn -b :$PORT main:app
threadsafe: true

After running gcloud app deploy I'm faced with a 500 error and the logs reveal the following

Traceback (most recent call last):
  File "/base/data/home/runtimes/python27_experiment/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 240, in Handle
handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
  File "/base/data/home/runtimes/python27_experiment/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 299, in _LoadHandler
handler, path, err = LoadObject(self._handler)
  File "/base/data/home/runtimes/python27_experiment/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 85, in LoadObject
obj = __import__(path[0])
  File "/base/data/home/apps/g~test-website/20170924t080410.404328292497306090/app.py", line 3, in <module>
from flask import Flask, render_template
ImportError: No module named flask

Can anyone help me configure a standard environment

Answer 1

You are combining syntax for the flexible environment and the standard environment in your app.yaml

Look at the documentation for the app.yaml and stick to the standard environment reference. The env parameter is only used for flex and entrypoint is only for flex. The runtime parameter should be python27 as python means the deprecated Python 2.5 runtime.

Given that you're trying to use Flask, you should probably read the getting started guide that is specifically for Flask .