Iteration of an array

[perfringo]

I don't get it. One can't have different size of namedtuple object, there will be TypeError:

>>> Person = nametuple('Person', 'name gender age')
>>> Bob = Person('Bob', 'male', 22)
>>> Bob
Person(name='Bob', gender='male', age=22)
>>> Sam = Person('Sam', 'male', 20, 'student')
TypeError: __new__() takes 4 positional arguments but 5 were given

To access values in list of namedtuples:

>>> Person = nametuple('Person', 'name gender age')
>>> data = [['Bob', 'male', 22], ['Alice', 'female', 21]]
>>> persons = [Person(*row) for row in data)
>>> persons
[Person(name='Bob', gender='male', age=22),
 Person(name='Alice', gender='female', age=21)]
>>> [person.name for person in persons if person.gender == 'male']
['Bob']
>>> [person.name for person in persons if person.gender == 'male'][0]
'Bob'
>>> persons[0].name
'Bob'