tree 7aef7edeb3cef8dad2ca59c7b46ca3c7e68431b4
parent 47101cda0aeb8f573b5b61b97bf333ec8433d552
author Skye Wanderman-Milne <skyewm@google.com> 1571332316 -0700
committer TensorFlower Gardener <gardener@tensorflow.org> 1571332598 -0700

[XLA:Python] Raise an error if no backends are successfully initialized.

Prior to this change, this would fail when trying to access list(backends.values())[-1], and give no indication what the actual error was.

PiperOrigin-RevId: 275283415
Change-Id: I48a4aab0aea27794dcfdc7f8f9884f8369d4c031