DictMap

class polpo.preprocessing.dict.DictMap(step=None, pbar=False, key_step=None, special_keys=(), special_step=None)

Bases: StepWrappingPreprocessingStep

Apply a given step to each element of a dictionary.

Parameters:

• step (callable) – Preprocessing step to apply to value.

• pbar (bool) – Whether to show a progress bar.

• key_step (callable) – Preprocessing step to apply to key.

• special_keys (array-like) – Keys to be subject to a different step.

• special_step (callable) – Step to apply to special keys.

apply(data)

Apply step.

Parameters:

data (dict)

Returns:

new_data (dict)