def _get_dgl_url(file_url):
    """Get DGL online url for download."""
    dgl_repo_url = "https://data.dgl.ai/"
    repo_url = os.environ.get("DGL_REPO", dgl_repo_url)
    if repo_url[-1] != "/":
        repo_url = repo_url + "/"
    return repo_url + file_url
Get DGL online url for download.
python/dgl/data/utils.py