fix: declare PyPDF2 for the Streamlit tutorial

[Whxuan0701]

Summary

• add the missing PyPDF2 dependency used by the Streamlit tutorial app
• normalize the existing requirements file ending

Motivation

tutorials/agent-with-streamlit-ui/app.py imports PyPDF2 to process uploaded PDF files, but the tutorial's requirements.txt does not install it. A clean installation therefore fails with ModuleNotFoundError: No module named 'PyPDF2' before the app can start.

Validation

• reproduced the missing import in a clean uv virtual environment using the original requirements file
• uv pip install --python .venv/bin/python -r tutorials/agent-with-streamlit-ui/requirements.txt
• .venv/bin/python -c 'import PyPDF2; assert PyPDF2.__version__ == "3.0.1"'
• git diff --check origin/main...HEAD

Pre-PR checklist

• Change is limited to the existing tutorial dependency list
• Dependency is explicitly version-bounded
• No API keys or sensitive information added
• Clean-environment import verified
• No unrelated tutorial content changed

Risks / known gaps

This PR only fixes dependency installation. It does not change the Streamlit application or execute live OpenAI requests.

Summary by CodeRabbit

• New Features

  • Added PDF processing support to the Streamlit tutorial.

• Chores

  • Cleaned up dependency formatting.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 5efdf3bf-7735-4a50-9483-b9b1560fc2e0

📥 Commits

Reviewing files that changed from the base of the PR and between df724c5 and 5872309.

📒 Files selected for processing (1)

• tutorials/agent-with-streamlit-ui/requirements.txt

Included review availability: Your plan includes up to 10 reviews per rolling hour; 9 remain after this review.

---

📝 Walkthrough

Walkthrough

The Streamlit tutorial requirements add PyPDF2>=3.0.1 and normalize whitespace on the python-dotenv entry.

Changes

Streamlit tutorial dependencies

Layer / File(s)	Summary
Tutorial dependency declarations tutorials/agent-with-streamlit-ui/requirements.txt	The requirements add PyPDF2>=3.0.1 and remove trailing whitespace from python-dotenv.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 58723

This is a localized dependency declaration for the Streamlit tutorial; no actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the addition of the PyPDF2 dependency to the Streamlit tutorial.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}