Dynamic Graphs (Experimental)¶

class dagster.experimental.DynamicOutputDefinition(dagster_type=None, name=None, description=None, is_required=None, io_manager_key=None, metadata=None, asset_key=None, asset_partitions=None)[source]¶

(EXPERIMENTAL) Variant of OutputDefinition for an output that will dynamically alter the graph at runtime. Each copy of DynamicOutput corresponding to this definition that is yielded from the solid will create a copy of the downstream graph.

class dagster.experimental.DynamicOutput[source]¶

(Experimental) Variant of Output used to support mapping. Each DynamicOutput produced by a solid will result in the downstream dag being cloned to run on that individual value. Each DynamicOutput must have a unique mapping_key to distinguish it.

Parameters

• value (Any) – The value returned by the compute function.

• mapping_key (str) – The key that uniquely identifies this dynamic value relative to its peers.

• output_name (Optional[str]) – Name of the corresponding output definition. (default: “result”)

• metadata_entries (Optional[Union[EventMetadataEntry, PartitionMetadataEntry]]) – (Experimental) A set of metadata entries to attach to events related to this Output.