def toTypeURIs(namespace_map, alias_list_s):
    """Given a namespace mapping and a string containing a
    comma-separated list of namespace aliases, return a list of type
    URIs that correspond to those aliases.

    @param namespace_map: The mapping from namespace URI to alias
    @type namespace_map: openid.message.NamespaceMap

    @param alias_list_s: The string containing the comma-separated
        list of aliases. May also be None for convenience.
    @type alias_list_s: str or NoneType

    @returns: The list of namespace URIs that corresponds to the
        supplied list of aliases. If the string was zero-length or
        None, an empty list will be returned.

    @raise KeyError: If an alias is present in the list of aliases but
        is not present in the namespace map.
    """
    uris = []

    if alias_list_s:
        for alias in alias_list_s.split(','):
            type_uri = namespace_map.getNamespaceURI(alias)
            if type_uri is None:
                raise KeyError(
                    (alias,) % 'No type is defined for attribute name %r')
            else:
                uris.append(type_uri)

    return uris
dataset/ETHPy150Open necaris/python3-openid/openid/extensions/ax.py/toTypeURIs/swapped operands of `%`