taskqueue lib is advertised but not available nor explained in docs

[robertjchristian]

How does one make the taskqueue lib available in Python 3.4?

1. OS type and version - All
2. Python version and virtual environment information python --version Python 3.4
3. google-cloud-python version pip show google-cloud, pip show google-<service> or pip freezegoogle-cloud==0.27.0
4. Stacktrace if available:
   from google.appengine.api import taskqueue
   ModuleNotFoundError: No module named 'google.appengine'
5. Steps to reproduce:

• Follow any google example or documentation on using task pull queue.
• pip install google-cloud
• Include import statement as specified: from google.appengine.api import taskqueue
• See that taskqueue is not available.
• Review 20+ outstanding google docs and code examples relating to task pull queues. Find that not one explains how to make this lib available to python 3.4.
• Google for this error online. See that there is a lot of confusion around this particular lib. See that there are several stack overflow questions on this with no clear answer.

6. Code example
   https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/taskqueue/pull-counter or anything else online by google regarding task queue. Not a single example explains how to make this lib available for python 3.4 app engine flex.

[duggelz]

Unfortunately, the task queue service is not available in the App Engine Flexible environment yet. We will update the migration doc to more clearly state this limitation.

CC @jonparrott @andrewsg

[theacodes]

As @duggelz said, there's not currently a task queue library for use outside of the app engine standard environment.

However, as per the migration doc you can make an App Engine flex service the target of a push queue task that's enqueued from an App Engine standard service.

Let us know if you have any other questions.

[robertjchristian]

Thank you. I do have a question. How would I create a pull queue from pub sub to process 5 worker threads concurrently?

Here's additional context on the question:

https://stackoverflow.com/questions/45745967/how-to-setup-a-concurrent-worker-pool-in-python-3-4-using-gcp-pubsub

If using Python thread pool makes sense, how would I drive it from within App Engine? With a main() or is there a known way to run alongside gunicorn or similar so that it can also support rest?

[theacodes]

Our pubsub client is poised to change quite a bit soon, but, our Bookshelf Pub/Sub tutorial shows how to use Pub/Sub to do worker queues: https://cloud.google.com/python/getting-started/using-pub-sub

[robertjchristian]

Thank you. https://cloud.google.com/python/getting-started/using-pub-sub is absolutely what I was looking for!

[mike-seekwell]

Any timeline on this? I just spent several hours researching and implementing this only to find you can't use it with Python3. Or can someone at least approve my request for Cloud Tasks API Alpha?