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[GH-ISSUE #1684] [TinyTorch] Answers already in module 1 #10821

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opened 2026-05-12 18:50:10 -05:00 by GiteaMirror · 5 comments
GiteaMirror commented 2026-05-12 18:50:10 -05:00
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Originally created by @bdub-1 on GitHub (May 5, 2026).
Original GitHub issue: https://github.com/harvard-edge/cs249r_book/issues/1684

Module

01 Tensor

Type of Improvement

Code quality (refactor, style, consistency)

Description

The solutions were already implemented when I started module 1.

# Install TinyTorch (run from a project folder like ~/projects)
curl -sSL mlsysbook.ai/tinytorch/install.sh | bash

# Activate and verify
cd tinytorch
source .venv/bin/activate
tito setup

tito module start 01

Proposed Solution

Remove the implementations from the working notebooks.

Originally created by @bdub-1 on GitHub (May 5, 2026). Original GitHub issue: https://github.com/harvard-edge/cs249r_book/issues/1684 ### Module 01 Tensor ### Type of Improvement Code quality (refactor, style, consistency) ### Description The solutions were already implemented when I started module 1. ``` # Install TinyTorch (run from a project folder like ~/projects) curl -sSL mlsysbook.ai/tinytorch/install.sh | bash # Activate and verify cd tinytorch source .venv/bin/activate tito setup tito module start 01 ``` ### Proposed Solution Remove the implementations from the working notebooks.
GiteaMirror added the area: booktype: bugarea: tinytorchtype: improvement labels 2026-05-12 18:50:10 -05:00
GiteaMirror commented 2026-05-12 18:50:12 -05:00
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@Shashank-Tripathi-07 commented on GitHub (May 5, 2026):

The solutions you are seeing are in the source file (src/01_tensor/01_tensor.py), which is the contributor-facing source of truth. The ### BEGIN SOLUTION / ### END SOLUTION markers are intentional nbgrader annotations.

When a student runs tito src export, these blocks get stripped out to generate the student-facing notebook with empty stubs. The GitHub source view always shows the full implementation by design.

To get the blank student version locally:

cd cs249r_book/tinytorch
tito src export 01

This generates the notebook in modules/01_tensor/ with only the TODO stubs visible. Not a bug, working as intended.

<!-- gh-comment-id:4380949453 --> @Shashank-Tripathi-07 commented on GitHub (May 5, 2026): The solutions you are seeing are in the **source file** (`src/01_tensor/01_tensor.py`), which is the contributor-facing source of truth. The `### BEGIN SOLUTION` / `### END SOLUTION` markers are intentional nbgrader annotations. When a student runs `tito src export`, these blocks get **stripped out** to generate the student-facing notebook with empty stubs. The GitHub source view always shows the full implementation by design. To get the blank student version locally: ```bash cd cs249r_book/tinytorch tito src export 01 ``` This generates the notebook in `modules/01_tensor/` with only the TODO stubs visible. Not a bug, working as intended.
GiteaMirror commented 2026-05-12 18:50:12 -05:00
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@bdub-1 commented on GitHub (May 5, 2026):

Thanks for the response. I used the quick start guide to being my module. I also don't see any mention of the this in the docs unless I missed it during the setup instructions. When I run tito --help there is no export command that shows up.

edit: I am following the student-learner role so I was confused why I am seeing the answers as my default. The TITO CLI module workflow page doesn't mention this either. I cannot get the blank version to generate so I am unsure if there actually is a bug. I saw a closed issue earlier of the same bug so I am wondering if the issue lingers

<!-- gh-comment-id:4381138846 --> @bdub-1 commented on GitHub (May 5, 2026): Thanks for the response. I used [the quick start guide](https://mlsysbook.ai/tinytorch/getting-started.html#start-the-module) to being my module. I also don't see any mention of the this in the docs unless I missed it during the setup instructions. When I run `tito --help` there is no `export` command that shows up. edit: I am following the [student-learner role](https://mlsysbook.ai/tinytorch/tito/overview.html#commands-by-user-role) so I was confused why I am seeing the answers as my default. The [TITO CLI module workflow page](https://mlsysbook.ai/tinytorch/tito/modules.html) doesn't mention this either. I cannot get the blank version to generate so I am unsure if there actually is a bug. I saw a closed issue earlier of the same bug so I am wondering if the issue lingers
GiteaMirror commented 2026-05-12 18:50:13 -05:00
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@Shashank-Tripathi-07 commented on GitHub (May 6, 2026):

This is a confirmed bug. When a student runs tito module start 01, the CLI was generating the notebook by passing the raw src/01_tensor/01_tensor.py file directly to jupytext with no stripping step. Every ### BEGIN SOLUTION / ### END SOLUTION block was carried over intact into the student notebook, so all answers were already filled in from the start.

The issue was in _create_module_from_src inside tinytorch/tito/commands/module/workflow.py. The function's own docstring acknowledged this behavior:

"Full src/ (including ### BEGIN SOLUTION ... ### END SOLUTION blocks) is passed through to jupytext"

The fix strips those solution blocks in memory before conversion. The source files in src/ are never touched. A temp directory is used to hold the stripped version, jupytext converts it to a notebook, and the temp dir is cleaned up automatically. Students now receive blank stubs with TODO comments, as intended.

PR: #1686

<!-- gh-comment-id:4384835228 --> @Shashank-Tripathi-07 commented on GitHub (May 6, 2026): This is a confirmed bug. When a student runs `tito module start 01`, the CLI was generating the notebook by passing the raw `src/01_tensor/01_tensor.py` file directly to jupytext with no stripping step. Every `### BEGIN SOLUTION` / `### END SOLUTION` block was carried over intact into the student notebook, so all answers were already filled in from the start. The issue was in `_create_module_from_src` inside `tinytorch/tito/commands/module/workflow.py`. The function's own docstring acknowledged this behavior: > "Full `src/` (including `### BEGIN SOLUTION` ... `### END SOLUTION` blocks) is passed through to jupytext" The fix strips those solution blocks in memory before conversion. The source files in `src/` are never touched. A temp directory is used to hold the stripped version, jupytext converts it to a notebook, and the temp dir is cleaned up automatically. Students now receive blank stubs with TODO comments, as intended. PR: #1686
GiteaMirror commented 2026-05-12 18:50:13 -05:00
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@Shashank-Tripathi-07 commented on GitHub (May 6, 2026):

Thanks for your attention to this bug @bdub-1 . I've made a PR and corrected this to make sure no future versions suffer from any problem like these !

We highly needed learner feedback for the project so that we can correct it further and better ! Thanks

<!-- gh-comment-id:4384840920 --> @Shashank-Tripathi-07 commented on GitHub (May 6, 2026): Thanks for your attention to this bug @bdub-1 . I've made a PR and corrected this to make sure no future versions suffer from any problem like these ! We highly needed learner feedback for the project so that we can correct it further and better ! Thanks
GiteaMirror commented 2026-05-12 18:50:14 -05:00
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@bdub-1 commented on GitHub (May 6, 2026):

Happy to help!

<!-- gh-comment-id:4385022872 --> @bdub-1 commented on GitHub (May 6, 2026): Happy to help!
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