Getting AttributeError in Streaming API client

[chan71]

In which file did you encounter the issue?

https://github.com/GoogleCloudPlatform/python-docs-samples/blob/master/speech/grpc/transcribe_streaming.py

Did you change the file? If so, how?

No changes to file.

Describe the issue

Getting an error when the file is run after setting the environment variable GOOGLE_APPLICATION_CREDENTIALS. I'm using Python 2.7.11 on Windows 8.1.

Stack trace:

C:\test>python transcribe_streaming.py
Traceback (most recent call last):
  File "transcribe_streaming.py", line 238, in <module>
    main()
  File "transcribe_streaming.py", line 214, in main
    make_channel('speech.googleapis.com', 443)) as service:
  File "transcribe_streaming.py", line 52, in make_channel
    creds = credentials.get_credentials().create_scoped([SPEECH_SCOPE])
AttributeError: 'Credentials' object has no attribute 'create_scoped'

[theacodes]

@chan71 can you give me the output of pip freeze?

[chan71]

Please find the output of pip greeze

C:\windows\system32>pip freeze
enum34==1.1.6
future==0.16.0
futures==3.0.5
gapic-google-cloud-speech-v1beta1==0.14.0
google-auth==0.4.0
google-auth-httplib2==0.0.2
google-cloud-core==0.22.1
google-cloud-speech==0.22.0
google-gax==0.15.0
googleapis-common-protos==1.5.0
grpc-google-cloud-speech-v1beta1==0.11.1
grpcio==1.0.3
httplib2==0.9.2
oauth2client==3.0.0
ply==3.8
protobuf==3.1.0.post1
pyasn1==0.1.9
pyasn1-modules==0.0.8
PyAudio==0.2.9
pysolr==3.6.0
requests==2.12.3
rsa==3.4.2
six==1.10.0
virtualenv==15.1.0
watson-developer-cloud==0.22.0
ws4py==0.3.5

[theacodes]

Ah I see, this whole sample needs to be updated to use google.auth.

Maybe @jerjou or @ryanmats can handle it?

We should essentially replace make_channel with http://google-auth.readthedocs.io/en/latest/reference/google.auth.transport.grpc.html#google.auth.transport.grpc.secure_authorized_channel

[chan71]

Thanks @jonparrott for the direction. I'm trying adding google.auth to the sample myself. Is there any other sample that is up to date with google.auth?

[theacodes]

Not one that users grpc directly.

…

On Wed, Dec 14, 2016, 5:08 PM chan71 ***@***.***> wrote: Thanks @jonparrott <https://github.com/jonparrott> for the direction. I'm trying adding google.auth to the sample myself. Is there any other sample that is up to date with google.auth? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#719 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAPUc0w30l9e30JWP8GiOOLzDqrmG7y2ks5rIJL_gaJpZM4LM5Ve> .

[chan71]

In my attempt at getting google.auth added to transcribe_streaming.py, I modified the code to use google.auth as given in here.

Installed google-cloud-speech-v1 using pip install grpc-google-cloud-speech-v1 before running the file. But getting the following error.

C:\>python transcribe_streaming-new.py
Traceback (most recent call last):
  File "transcribe_streaming-new.py", line 256, in <module>
    main()
  File "transcribe_streaming-new.py", line 231, in main
    with cloud_speech.create_Speech_stub(
AttributeError: 'module' object has no attribute 'create_Speech_stub'

When I looked at the attributes of cloud_speech_pb2, I can't see the create_Speech_stub. Instead beta_create_Speech_stub is what it has. I have tried calling this method. I don't know if it is good to use this beta method though.

>>> from google.cloud.speech.v1 import cloud_speech_pb2 as cloud_speech
>>> dir(cloud_speech)
['AudioRequest', 'BetaSpeechServicer', 'BetaSpeechStub', 'DESCRIPTOR', 'InitialRecognizeRequest', 'NonStreamingRecognizeResponse', 'RecognizeRequest', 'RecognizeResponse', 'SpeechContext', 'SpeechRecognitionAlternative', 'SpeechRecognitionResult', '_AUDIOREQUEST', '_INITIALRECOGNIZEREQUEST', '_INITIALRECOGNIZEREQUEST_AUDIOENCODING', '_NONSTREAMINGRECOGNIZERESPONSE', '_RECOGNIZEREQUEST', '_RECOGNIZERESPONSE', '_RECOGNIZERESPONSE_ENDPOINTEREVENT', '_SPEECHCONTEXT', '_SPEECHRECOGNITIONALTERNATIVE', '_SPEECHRECOGNITIONRESULT', '__builtins__', '__doc__', '__file__', '__name__', '__package__', '_b', '_descriptor', '_message', '_reflection', '_sym_db', '_symbol_database', 'abc', 'beta_create_Speech_server', 'beta_create_Speech_stub', 'beta_implementations', 'beta_interfaces', 'cardinality', 'descriptor_pb2', 'face_utilities', 'google_dot_api_dot_annotations__pb2', 'google_dot_rpc_dot_status__pb2', 'six', 'sys']

However, I'm getting following error now.

C:\>python transcribe_streaming-new.py
Traceback (most recent call last):
  File "transcribe_streaming-new.py", line 256, in <module>
    main()
  File "transcribe_streaming-new.py", line 232, in main
    make_authorized_channel('speech.googleapis.com', 443)) as service:
  File "transcribe_streaming-new.py", line 84, in make_authorized_channel
    credentials, host + ':' + str(port), request)
  File "D:\Python27\lib\site-packages\google\auth\transport\grpc.py", line 119, in secure_authorized_channel
    return grpc.secure_channel(target, composite_credentials, **kwargs)
  File "D:\Python27\lib\site-packages\grpc\__init__.py", line 1231, in secure_channel
    return _channel.Channel(target, options, credentials._credentials)
  File "D:\Python27\lib\site-packages\grpc\_channel.py", line 876, in __init__
    _common.encode(target), _options(options), credentials)
  File "D:\Python27\lib\site-packages\grpc\_common.py", line 83, in encode
    return s.encode('ascii')
AttributeError: 'Request' object has no attribute 'encode'
Exception AttributeError: "'Channel' object has no attribute '_connectivity_state'" in <bound method Channel.__del__ of <grpc._channel.Channel object at 0x0000000003E37898>> ignored

What could be the reason?

[theacodes]

@chan71 seems it was a more significant change than anticipated: We have a PR out to fix this here: #724

[chan71]

Works like a charm. Appreciate your fast turnaround in fixing this @jonparrott and team

[theacodes]

Happy to help!

…

On Thu, Dec 15, 2016, 6:15 PM chan71 ***@***.***> wrote: Works like a charm. Appreciate your fast turnaround in fixing this @jonparrott <https://github.com/jonparrott> and team — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#719 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAPUc-FxGOUvIMJX9HoMkY8pxc-_duenks5rIfRCgaJpZM4LM5Ve> .