GeezerVison

Version gate skips iterator wrapping

High Severity

The global _iterator patch is applied only when _iterator is a functools.cached_property, but per-instance wrapping is skipped for every Anthropic version >= 1.14. Those two checks are not complementary, so a 1.14+ install whose _iterator is still an eager attribute (or a different descriptor than functools.cached_property) gets neither wrap. Streaming spans then miss accumulated output data, and if the caller never calls close(), the span never finishes.

 

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If they ever change it from being a cached property we want to degrade gracefully (and that's more important than finishing the span).
I know this looks weird but I use the version gate for the old behavior because we know that works without checking the type of _iterator and check that _iterator is a cached property otherwise to ensure forwards compatibility.