Ungraded Lab: KeyError: 'COLAB_TPU_ADDR'

Course Q&A TensorFlow: Advanced Techniques Specialization Generative Deep Learning with TensorFlow
1

When I execute

tpu_grpc_url = “grpc://” + os.environ[“COLAB_TPU_ADDR”]

I get error message:

KeyError: 'COLAB_TPU_ADDR'

Looks like there is no ‘COLAB_TPU_ADDR’ environment variable.
Hardware accelerator in TPU.

Any ideas?

Thanks

2

Try in the Connect Option in the upper right hand corner below Comment, click on the arrow and select a unit that has TPU in it. Maybe this fixes your problem.