from collections import namedtuple

Person = namedtuple('Person', ('id', 'role', 'name'))
print(Person)
people = [
    Person(1, 'Research', 'Ada Lovelace'),
    Person(2, 'Scientist', 'Grace Hopper'),
    Person._make((3, 'Poet', 'Emily Dickinson')),
    Person._make([4, 'Biologist', 'Rachel Carson']),
]

for p in people:
    print('R:', p)
    print('P:', p.id, p.role, p.name)
    i, role, name = p
    print('U:', i, role, name)
    print('I:', p[0], p[1], p[2])
print('Comparison:', people[0] < people[3], people[0] > people[3])
print('IsInstance:', isinstance(p, tuple))

Point = namedtuple('Point', 'x y')
xs = [Point(x, y) for y in range(2) for x in range(3)]
print(xs)
print(sorted(xs))