d3m.primitive_interfaces.transformer module

class d3m.primitive_interfaces.transformer.TransformerPrimitiveBase(*, hyperparams, random_seed=0, docker_containers=None, volumes=None, temporary_directory=None)[source]

Bases: d3m.primitive_interfaces.base.PrimitiveBase

A base class for primitives which are not fitted at all and can simply produce (useful) outputs from inputs directly. As such they also do not have any state (params).

This class is parameterized using only three type variables, Inputs, Outputs, and Hyperparams.


Primitive’s metadata. Available as a class attribute.


Primitive’s logger. Available as a class attribute.


Hyperparams passed to the constructor.


Random seed passed to the constructor.


A dict mapping Docker image keys from primitive’s metadata to (named) tuples containing container’s address under which the container is accessible by the primitive, and a dict mapping exposed ports to ports on that address.


A dict mapping volume keys from primitive’s metadata to file and directory paths where downloaded and extracted files are available to the primitive.


An absolute path to a temporary directory a primitive can use to store any files for the duration of the current pipeline run phase. Directory is automatically cleaned up after the current pipeline run phase finishes.

docker_containers = None[source]
fit(*, timeout=None, iterations=None)[source]

A noop.

  • timeout (Optional[float]) – A maximum time this primitive should be fitting during this method call, in seconds.

  • iterations (Optional[int]) – How many of internal iterations should the primitive do.


Return type

A CallResult with None value.

fit_multi_produce(*, produce_methods, inputs, timeout=None, iterations=None)[source]

A method calling fit and after that multiple produce methods at once.

  • produce_methods (Sequence[str]) – A list of names of produce methods to call.

  • inputs (~Inputs) – The inputs given to all produce methods.

  • timeout (Optional[float]) – A maximum time this primitive should take to both fit the primitive and produce outputs for all produce methods listed in produce_methods argument, in seconds.

  • iterations (Optional[int]) – How many of internal iterations should the primitive do for both fitting and producing outputs of all produce methods.


Return type

A dict of values for each produce method wrapped inside MultiCallResult.


A noop.


Return type

An instance of parameters.

hyperparams = None[source]
random_seed = None[source]
set_params(*, params)[source]

A noop.


params (None) – An instance of parameters.

Return type



A noop.

Return type


temporary_directory = None[source]
volumes = None[source]