[CI] bump mypy version to 1.16.0

[andyxning]

Essential Elements of an Effective PR Description Checklist

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.

bump mypy version to 1.16.0 as it seems that 1.11.1 version can not detect some obvious static code analysis error.

Purpose

improve static code analysis quality

Test Plan

Test Result

(Optional) Documentation Update

[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.

💬 Join our developer Slack at https://slack.vllm.ai to discuss your PR in #pr-reviews, coordinate on features in #feat- channels, or join special interest groups in #sig- channels.

Just a reminder: PRs would not trigger full CI run by default. Instead, it would only run fastcheck CI which starts running only a small and essential subset of CI tests to quickly catch errors. You can run other CI tests on top of those by going to your fastcheck build on Buildkite UI (linked in the PR checks section) and unblock them. If you do not have permission to unblock, ping simon-mo or khluu to add you in our Buildkite org.

Once the PR is approved and ready to go, your PR reviewer(s) can run CI to test the changes comprehensively before merging.

To run CI, PR reviewers can either: Add ready label to the PR or enable auto-merge.

🚀

[gemini-code-assist]

Summary of Changes

Hello @andyxning, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request primarily focuses on improving the quality of our static code analysis by bumping the version of the mypy type checker used in our development workflow. This update aims to catch more potential issues during pre-commit checks. Additionally, I've included some minor formatting cleanups in example files.

Highlights

• Dependency Update: I've updated the mypy dependency version used in the pre-commit hooks from 1.11.1 to 1.16.0.
• Code Cleanup: Removed extraneous blank lines in a few example files related to lmcache.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point in your pull request via creating an issue comment (i.e. comment on the pull request page) using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in issue comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist is currently in preview and may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments to provide feedback.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configureGemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

This pull request updates the mypy version from 1.11.1 to 1.16.0. This is a positive change for maintaining and improving static code analysis quality.

To enhance the clarity and completeness of this PR, please consider the following points regarding the PR description:

1. Version Number Accuracy: There are a few discrepancies in the version numbers mentioned:

   • The description states the new version is "0.16.0", but the PR title and the actual code change correctly show "1.16.0".
   • The old version is referred to as "0.11.1" in the description, while the .pre-commit-config.yaml file indicates it was "1.11.1".
     Please update these to ensure consistency and accuracy.

2. Typo Correction: In the "Purpose" section, "quanlity" should be corrected to "quality".

3. Checklist Completion: The PR description includes a checklist that is mostly incomplete. Providing details for the following items would be beneficial:

   • Test Plan: Could you outline the steps taken to test this version bump? For example:
     • Did you run mypy locally across the codebase (e.g., using pre-commit run mypy -a or a similar project-specific command)?
     • Will the full CI suite be run to catch any regressions or new type errors introduced by this mypy upgrade?
   • Test Results: Please summarize the outcomes of your testing. For instance, confirming that mypy (version 1.16.0) passes locally and that CI checks are green would be valuable information.

4. Impact of Mypy Update: The PR description mentions that the older mypy version couldn't detect "some obvious static code analysis error." It would be helpful to:

   • Confirm if mypy 1.16.0 now successfully identifies these previously missed errors.
   • Clarify if this upgrade led to the discovery of any new type errors in the existing codebase. If new errors were found, were they addressed as part of this PR, or are they planned for follow-up work?

Addressing these points will help in understanding the full impact and verification process of this mypy version upgrade.

[russellb]

It looks like more work is required to get this passing first.

[russellb]

Can you drop these unrelated formatting changes?

[andyxning]

Will do.

[andyxning]

Yes. Will address it asap.