Original transformer example does not produce translated output

[hgohel]

The sample code for Chapter 3 the original transformer runs, but does not produce translated output in French. I've run the code locally and on Google Colab and the results are the same, i.e. no errors, but no translated output either.

...
Epoch 9, Loss 7.816434800624847
Source text: hello, how are you?
Translated text:

In addition to this string, I copied exact text from the training data, and even that was not translated:

Source text: Extraordinary Treatment of Injured Canadian Soldiers
Translated text:

Source text: integrating existing strategies and activities is difficult
Translated text:

Could you check the code, please? Here are the versions I am using:

Package	Version
Python	3.13.7 (same with 3.13.5)
numpy	2.2.6
pandas	2.3.1
tokenizers	0.22.0
torch	2.8.0
transformers	4.56.1

[hgohel]

@crodriguez1a any thoughts?