def __init__(self, url, length, mime_type):
        self.length, self.mime_type = length, mime_type
        self.url = iri_to_uri(url)
.. todo::
dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/utils/feedgenerator.py/Enclosure.__init__--crossover with--dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/models/s3c.py/E_Step.init_H_hat