In [2]:

from collections import namedtuple

A namedtuple can be used as a lightweight class (with a class name and attribute names).

In [3]:

Crayon = namedtuple('Crayon', 'code color')

red = Crayon(121, 'pale geranium lake')
yellow = Crayon(105, 'light cadmium yellow')
green = Crayon(112, 'leaf green')
blue = Crayon(120, 'ultramarine')

In [4]:

print(yellow)

Crayon(code=105, color='light cadmium yellow')

In [5]:

print(red.code)
print(blue.color)
print(yellow[0])

121
ultramarine
105

In [6]:

Crayon._fields

Out[6]:

('code', 'color')

In [7]:

for key, value in green._asdict().items():
    print(key, ':', value)

code : 112
color : leaf green

Instantiate using a tuple.

In [8]:

new_crayon = (141, 'Delft blue')
blue_2 = Crayon._make(new_crayon)
blue_2 = Crayon(*new_crayon)