Fix: use add_weight instead of tf.Variable in training loop guide

[Aaraviitkgp]

Fixes [tensorflow/tensorflow#97599] (https://github.com/tensorflow/tensorflow/issues/97599). Replaced tf.Variable(...) with add_weight(...) in the custom model to avoid training warning and ensure proper Keras weight tracking.

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[Aaraviitkgp]

@googlebot I signed it!

[MarkDaoust]

Hi, thanks for creating the PR, but this doesn't work in Colab, please fix.

[github-actions[bot]]

Preview

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Format and style

Use the TensorFlow docs notebook tools to format for consistent source diffs and lint for style:

$ python3 -m pip install -U --user git+https://github.com/tensorflow/docs

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$ python3 -m tensorflow_docs.tools.nblint --arg=repo:tensorflow/docs notebook.ipynb

If commits are added to the pull request, synchronize your local branch: git pull origin fix-trainable-warning-doc

[Aaraviitkgp]

Hello there Mark, I checked it on Colab and it seems to work fine for me. I have attached screenshots of the code working fine for me, if any error please let me know. Thankyou

On Mon, Jul 28, 2025 at 9:30 PM Mark Daoust @.***> wrote:

MarkDaoust left a comment (tensorflow/docs#2388) https://github.com/tensorflow/docs/pull/2388#issuecomment-3127920437

Hi, thanks for creating the PR, but this doesn't work in Colab, please fix.

— Reply to this email directly, view it on GitHub https://github.com/tensorflow/docs/pull/2388#issuecomment-3127920437, or unsubscribe https://github.com/notifications/unsubscribe-auth/BOXUPB75CEQQ5ICANUU7QQD3KZCJZAVCNFSM6AAAAACCNNWMASVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTCMRXHEZDANBTG4 . You are receiving this because you authored the thread.Message ID: @.***>

[Aaraviitkgp]

I have made changes please check

[Aaraviitkgp]

@MarkDaoust Hello there, I have made the changes please check

[Aaraviitkgp]

@MarkDaoust please review

[MarkDaoust]

It's hard to review this with all the whitespace changes. Please follow the comment above to reformat:

Use the TensorFlow docs notebook tools to format for consistent source diffs and lint for style:

[Aaraviitkgp]

@MarkDaoust please check if its ok.