def bioarchive_url(package, pkg_version, bioc_version=None):
    """
    Constructs a url for the package as archived on bioaRchive

    Parameters
    ----------
    package : str
        Case-sensitive Bioconductor package name

    pkg_version : str
        Bioconductor package version

    bioc_version : str
        Bioconductor release version. Not used;, only included for API
        compatibility with other url funcs
    """
    return (
        'https://bioarchive.galaxyproject.org/{0}_{1}.tar.gz'
        .format(package, pkg_version)
    )