[docs]class CompositeDataset(object):
"""
A dataset composed of two or more others
Args:
datasets (list of datasets): One or more other datasets
Examples:
>>> from zounds import InternetArchive, CompositeDataset, ingest
>>> dataset1 = InternetArchive('beethoven_ingigong_850')
>>> dataset2 = InternetArchive('The_Four_Seasons_Vivaldi-10361')
>>> composite = CompositeDataset(dataset1, dataset2)
>>> ingest(composite, Sound) # ingest data from both datasets
"""
def __init__(self, *datasets):
super(CompositeDataset, self).__init__()
self.datasets = datasets
def __iter__(self):
for dataset in self.datasets:
for meta in dataset:
yield meta