# fiftyone.operators.logging_utils Stdio capture utilities for operator worker processes. Copyright 2017-2026, Voxel51, Inc.
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**Classes:** | [`LineFlushedStdio`](#fiftyone.operators.logging_utils.LineFlushedStdio)(original) | Replace tqdm-style r updates with n-terminated lines so the container runtime's line-delimited log pipeline flushes per tick. | |--------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------| ### *class* fiftyone.operators.logging_utils.LineFlushedStdio(original) Bases: `object` Replace tqdm-style r updates with n-terminated lines so the container runtime’s line-delimited log pipeline flushes per tick. Progress lines are throttled to one emit per integer percent; totalless progress lines (which render no percent) to one per count doubling. **Methods:** | [`write`](#fiftyone.operators.logging_utils.LineFlushedStdio.write)(s) | | |--------------------------------------------------------------------------|------------------------------------------------------| | [`flush`](#fiftyone.operators.logging_utils.LineFlushedStdio.flush)() | | | [`drain`](#fiftyone.operators.logging_utils.LineFlushedStdio.drain)() | Emit any unterminated buffered text as a final line. | #### write(s) #### flush() #### drain() Emit any unterminated buffered text as a final line.