Hacktoberfest 2026:維護者為十月標記出來的 issue,仍然開放、適合新手。 瀏覽 Hacktoberfest issue

Simple chatbot: consider removing cleanup lock from sequential lifecycle

未關閉 適合新手
#3,655 0 則留言 0 個 reaction 已指派 0 人 在 GitHub 檢視

維護者通常 1 天內回覆

還沒有人認領這個 Issue。

評估

難度
2/5
預估耗時
1-3 小時
新手友好度
66/100
Issue 類型
重構
描述清晰度
基本清楚
活躍度
活躍
技術堆疊
python
領域
backend

研究方向

從 examples/clients/simple-chatbot/mcp_simple_chatbot/main.py 開始,沿著 issue 中描述的清理呼叫路徑進行追蹤。在移除鎖之前,向維護者確認是否應支援示範流程之外的並行呼叫端。完成標準是:移除鎖,同時保留現有的清理主體和錯誤處理;或者新增註解,說明預期的並行使用情境。

由索引模型根據 Issue 內容生成。

描述

enhancement

While studying the simple chatbot's context-management lifecycle, I found Server._cleanup_lock confusing because the example does not appear to invoke cleanup concurrently on the same Server.

Source: examples/clients/simple-chatbot/mcp_simple_chatbot/main.py.

The current call paths are sequential:

  • Server.initialize() awaits self.cleanup() on initialization failure before re-raising.
  • ChatSession.start() awaits cleanup_servers() in its initialization-error handler and again in its finally block.
  • cleanup_servers() awaits each server's cleanup in reverse server order.

Repeated cleanup calls therefore do not overlap in the demonstrated flow. A single AsyncExitStack.aclose() already awaits the registered exits sequentially in reverse order, so the lock is not needed to make session teardown precede transport teardown.

Suggested simplification: remove the _cleanup_lock initialization and the async with self._cleanup_lock: wrapper, retaining the existing cleanup body and error handling. Alternatively, a brief comment explaining an intended concurrent-caller use case would clarify why the lock is retained.

This is an example-code clarity/simplification request based on source inspection, not an observed runtime bug or a claim that locks are unnecessary for concurrent cleanup generally. Removing it would remove serialization for callers that use this class concurrently outside the demonstrated flow; that tradeoff needs maintainer judgment. No runtime tests were performed for this report.

Reporting first per the contribution guide. AI assistance: prepared with OpenAI Codex after discussing the example and inspecting its cleanup call paths.

主要語言
Python
星號
24.5k
分支
4k
平均合併
1 天 4 小時
30 天內合併 PR
33

環境準備

從這裡開始

  1. 先讀完整個 Issue,再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

modelcontextprotocol/python-sdk 的其他 Issue

查看 modelcontextprotocol/python-sdk 的全部 Issue

相似的 Issue

更多 Python Issue

把新 issue 寄到你的電子郵件信箱

精選適合新手參與的 GitHub issue 摘要。