def from_tuple ( tup ) : if len ( tup ) not in ( 2 , 3 ) : raise ValueError ( 'tuple must contain 2 or 3 elements, not: %d (%r' % ( len ( tup ) , tup , ) , ) return range ( * tup )
python creatte range tuple
Convert a tuple into a range with error handling .
def from_tuple(tup):
    """Convert a tuple into a range with error handling.

    Parameters
    ----------
    tup : tuple (len 2 or 3)
        The tuple to turn into a range.

    Returns
    -------
    range : range
        The range from the tuple.

    Raises
    ------
    ValueError
        Raised when the tuple length is not 2 or 3.
    """
    if len(tup) not in (2, 3):
        raise ValueError(
            'tuple must contain 2 or 3 elements, not: %d (%r' % (
                len(tup),
                tup,
            ),
        )
    return range(*tup)