get_swagger_spec causes AttributeError: 'Namespace' object has no attribute 'x_google_api_name'

[realgsong]

Repro

1. clone https://github.com/GoogleCloudPlatform/python-docs-samples
2. cd ~/python-docs-samples/appengine/standard/endpoints-frameworks-v2/echo
3. pip install --system -t lib google-endpoints>=4.8.0
4. python ./lib/endpoints/endpointscfg.py get_swagger_spec main.api

Error

Traceback (most recent call last):
  File "./lib/endpoints/endpointscfg.py", line 31, in <module>
    main(sys.argv)
  File "/home/ksbae/python-docs-samples/appengine/standard/endpoints/backend/lib/endpoints/_endpointscfg_impl.py", line 617, in main
    args.callback(args)
  File "/home/ksbae/python-docs-samples/appengine/standard/endpoints/backend/lib/endpoints/_endpointscfg_impl.py", line 465, in _GenOpenApiSpecCallback
    x_google_api_name=args.x_google_api_name)

Please tell me if I'm missing something.

[inklesspen]

Unfortunately, that example is obsolete and should not be used. The correct examples are in https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/endpoints-frameworks-v2

[realgsong]

I got the same error with endpoints-frameworks-v2 sample. @inklesspen would you reopen this issue?

Traceback (most recent call last):
  File "./lib/endpoints/endpointscfg.py", line 31, in <module>
    main(sys.argv)
  File "/home/ksbae/python-docs-samples/appengine/standard/endpoints-frameworks-v2/echo/lib/endpoints/_endpointscfg_impl.py", line 617, in main
    args.callback(args)
  File "/home/ksbae/python-docs-samples/appengine/standard/endpoints-frameworks-v2/echo/lib/endpoints/_endpointscfg_impl.py", line 465, in _GenOpenApiSpecCallback
    x_google_api_name=args.x_google_api_name)
AttributeError: 'Namespace' object has no attribute 'x_google_api_name'

[tomboc]

get_swagger_spec is a legacy command, replaced by get_openapi_spec.
While I investigate why get_swagger_spec doesn't behave correctly, use:
python ./lib/endpoints/endpointscfg.py get_openapi_spec main.EchoApi

The full up-to-date instructions for Endpoints Frameworks are here: https://cloud.google.com/endpoints/docs/frameworks/python/get-started-frameworks-python