def urljoin(*args):
    return '/'.join(str(a or '').strip('/') for a in args)
Upload a file to a key into a bucket on S3.
dataset/ETHPy150Open openstack/python-openstacksdk/openstack/utils.py/urljoin--crossover with--dataset/ETHPy150Open darcyliu/storyboard/boto/s3/key.py/Key.send_file