Update to Language v1

[bjwatson]

What

Update the hand-written code to Language v1, which was publicly announced yesterday (11/15). The new GAPIC code is in a PR, which will be published to PyPI as soon as its approved.

Why

Language v1beta1 has been replaced by v1 as of Tuesday 11/15. It has some additional features we want to support.

This should be done soon, so that we can update the public documentation and samples to reference the google-cloud-language library.

[jmdobry]

Friendly 🐶 notification, this is blocking GoogleCloudPlatform/python-docs-samples#668

[bjwatson]

Thanks for the heads up @jmdobry. Once I get LGTM on googleapis/api-client-staging#106, I'll publish Python GAPIC for Language v1, and then @dhermes can take a look at what's needed in the hand-written code.

[dhermes]

@bjwatson FWIW the current implementation is JSON-over-HTTP only, so an update isn't blocked on the GAPIC release. (To check if a given API package is using GAPIC yet, just check the deps.)

[bjwatson]

Ok, thanks @dhermes. At least you'll have it when you add the gRPC path. :)

[gguuss]

Friendly ping, we're still waiting on this.

[jmdobry]

To switch to NL V1 does google-cloud-python also need to switch to using the GAPIC code, or can just the JSON-over-HTTP stuff get updated?

[dhermes]

Just the JSON-over-HTTP stuff can get updated. What is the delta between the old and new versions? Is it as simple as changing one line?

[jmdobry]

Seems there was at least one breaking change (from the google-cloud-node PR updating to NL V1):

• New rcp AnalyzeSyntax in the form of document#detectSyntax
• Sentences can now contain sentiments
• sentiment.polarity was renamed to sentiment.score
• partOfSpeech received 11 new attributes
• English, Japanese and Spanish now supported for all features.

See googleapis/google-cloud-node#1783