hub.Module() fails in python3 with tensorflow>=1.8.0rc0

[andresusanopinto]

This is due to "prepend_name_scope" failing silently when given a "bytes" instead of "string".

It fails with an error like:

WARNING:tensorflow:cannot use a string pattern on a bytes-like object
KeyError: "The name 'global_step:0' refers to a Tensor which does not exist. The operation, 'global_step', does not exist in the graph."

[andresusanopinto]

tf.compat.as_str is broken in 1.8.0rc0.. see tensorflow/tensorflow#18598.

[jpzhangvincent]

embed = hub.Module("https://tfhub.dev/google/universal-sentence-encoder/1") seems also fails to retrieve the model in my local machine: Windows10, tensorflow version 1.7. Before it works good and it can cache to the 'C:\Users.*\AppData\Local\Temp\tfhub_modules..." file

Got the error:
NotFoundError: NewRandomAccessFile failed to Create/Open:

[andresusanopinto]

@jpzhangvincent that is unrelated with this issue. Please open a new one if that is something reproducible and not a sporadic failure.

[andresusanopinto]

I will close this as the issue in tensorflow/tensorflow#18598 has been fixed and should be on the next 1.8 release candidate.