datumaro.components.merge.extractor_merger

Functions

check_identicalness(seq[, raise_error_on_empty])

Classes

ExtractorMerger(sources)

A simple class to merge single-subset extractors.

datumaro.components.merge.extractor_merger.check_identicalness(seq: Sequence[T], raise_error_on_empty: bool = True) → T | None

class datumaro.components.merge.extractor_merger.ExtractorMerger(sources: Sequence[SubsetBase])

Bases: DatasetBase

A simple class to merge single-subset extractors.

infos() → Dict[str, Any]

Returns meta-info of dataset.

categories() → Dict[AnnotationType, Categories]

Returns metainfo about dataset labels.

get(id: str, subset: str | None = None) → DatasetItem | None

Provides random access to dataset items.

property is_stream: bool

Boolean indicating whether the dataset is a stream

If the dataset is a stream, the dataset item is generated on demand from its iterator.