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project-create generates an invalid class name when the project name starts with a digit

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#673 0 条评论 0 个 reaction 已指派 0 人 在 GitHub 查看

@Amadeus-22 已经在做这个了。

开始于 2026年10月6日。

  • #674 来自 @Amadeus-22 —— 未关闭

评估

难度
2/5
预计耗时
1 小时以内
新手友好度
40/100
Issue 类型
缺陷
描述清晰度
描述清楚
活跃度
活跃
技术栈
python
领域
cli

调研方向

Find the code handling the project-create command in the lean-cli codebase, likely in a commands or templates directory. Look for the function that generates class names by removing non-alphanumeric characters from the project name. Add a check to prefix the result with an underscore when it starts with a digit or is empty, then add tests for project names like '2024 Momentum' and '123'.

由索引模型根据 Issue 内容生成。

描述

Expected Behavior

lean project-create writes a main file that compiles, whatever the project name is.

Actual Behavior

The class name is the project name with non-alphanumeric characters removed. If the name starts with a digit, the generated class is not a valid identifier in Python or C#:

$ lean project-create --language python "2024 Momentum"
$ grep class "2024 Momentum/main.py"
class 2024Momentum(QCAlgorithm):

python -m py_compile on that file fails with SyntaxError: invalid decimal literal. A name with only digits (123) gives class 123(QCAlgorithm):. The command exits with code 0 in both cases, so the problem only shows up when the project is run.

Potential Solution

Prefix the class name with an underscore when it is empty or starts with a digit (_2024Momentum). I can open a PR with the fix and tests.

Reproducing the Problem

See the commands above.

System Information

lean-cli master at 20e58aa, Linux.

Checklist
  • I have completely filled out this template
  • I have confirmed that this issue exists on the current master branch
  • I have confirmed that this is not a duplicate issue by searching issues
主要语言
Python
星标
327
派生
169
PR 合并指标
30 天内没有已合并 PR

环境准备

这个项目没有提供开发容器、Dockerfile 或贡献指南,环境需要你自己搭建:先看它的 README,通用步骤见我们的新手贡献指南。

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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