python runtime_error ai_generated true

停止迭代：

StopIteration:

ID: python/stopiteration-next-on-empty-generator

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80%修复率
84%置信度
0证据数
2025-04-11首次发现

版本兼容性

版本状态引入弃用备注
3.8 active — — —
3.9 active — — —
3.10 active — — —

根因分析

在没有默认值的情况下对没有更多项的生成器或迭代器调用 next()。

English

Calling next() on a generator or iterator that has no more items, without a default value.

generic

解决方案

  1. 95% 成功率 Provide default value to next() 
    item = next(generator, None)
  2. 90% 成功率 Use for loop instead of next() 
    for item in generator:
    process(item)

无效尝试

常见但无效的做法:

  1. Catching StopIteration with a bare except 60% 失败

    Bare except catches all exceptions, potentially hiding other bugs.

  2. Using list(iterator) without checking length 40% 失败

    list() consumes the iterator but does not handle empty case gracefully.