def isinstance_all(iterable, class_or_tuple):
    """
    Check if all items of an iterable are instance of
    a class ou tuple of classes

    >>> isinstance_all(['Hello', 'World'], str)
    True
    >>> isinstance_all([1, 'Hello'], (str, int))
    True
    >>> isinstance_all([True, 'Hello', 5], int)
    False
    """
    return all(
        isinstance(obj, class_or_tuple)
        for obj in iterable
    )