Error trying to traverse a complete DICOMweb-tree about dicomweb-client HOT 2 CLOSED

import logging

import requests
import dicomweb_client

test_logger = logging.getLogger('test_dicomweb_client')


def test_walk(client):
    matched_studies = client.search_for_studies()
    for study in matched_studies:
        study_instance_uid = study['0020000D']['Value'][0]
        matched_series = client.search_for_series(study_instance_uid)
        for series in matched_series:
            series_instance_uid = series['0020000E']['Value'][0]
            matched_instances = client.search_for_instances(
                study_instance_uid,
                series_instance_uid
            )
            for instance in matched_instances:
                sop_instance_uid = instance['00080018']['Value'][0]
                try:
                    dataset = client.retrieve_instance(
                        study_instance_uid,
                        series_instance_uid,
                        sop_instance_uid
                    )
                except requests.exceptions.HTTPError:
                    test_logger.error(
                        'Instance not found: study={study_instance_uid}, '
                        'series={series_instance_uid}, '
                        'instance={sop_instance_uid}'.format(**locals())
                    )


if __name__ == '__main__':

    logging.basicConfig(level=logging.INFO)

    dicomweb_client_logger = logging.getLogger('dicomweb_client')
    dicomweb_client_logger.setLevel(logging.DEBUG)

    client = dicomweb_client.DICOMwebClient(
        url='https://dicomcloud.azurewebsites.net',
        qido_url_prefix='qidors',
        wado_url_prefix='wadors',
        stow_url_prefix='stowrs'
    )
    test_walk(client)