def construct_url(url, dataset_path, end_point):

    return "/".join([url, dataset_path, end_point])
:returns:
dataset/ETHPy150Open CenterForOpenScience/scrapi/scrapi/harvesters/lwbin.py/construct_url--crossover with--dataset/ETHPy150Open tabo/django-treebeard/treebeard/models.py/Node.get_first_sibling