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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Tachyon's `StackTraceCollector` has two different ways to set `skip_idle`","articleBody":"I was looking at the code in Tachyon and I think I've found something that isn't quite right (or at least is misleading and needs to be documented?)\n\nIn the `StackTraceCollector`, it seems like `self.skip_idle` is set but never used, as every `collect` method gets another `skip_idle` parameter that they use in `_iter_stacks` (or their calls to parent class' methods). \n\nBased on the [code](https://github.com/python/cpython/blob/72eca2af59043c78647b0e6be3777a947ea9ef0f/Lib/profiling/sampling/live_collector/collector.py) for e.g. `live_collector`, it seems like the pattern is to use the attribute, not a parameter.\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-145459\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/KowalskiThomas","@type":"Person","name":"KowalskiThomas"},"datePublished":"2026-03-03T09:56:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/145458/cpython/issues/145458"}