вторник, 17 марта 2015 г., 19:52:28 UTC+3 пользователь Luciano Ramalho написал:
Sometimes we need a simple class to hold some mutable attributes, provide a nice repr, support == for testing, and support iterable unpacking, so you can write:
p = Point(3, 4) x, y = p
That's very much like the classes built by namedtuple, but mutable.
I propose we add to the collections module another class factory. I am calling it plainclass, but perhaps we can think of a better name. Here is how it would be used:
import collections Point = collections.plainclass('Point', 'x y')
The signature of the plainclass function would be exactly the same as namedtuple, supporting the same alternative ways of naming the attributes.
There is an attempt to make such alternative: recordarray <https://pypi.python.org/pypi/recordarray>.