python: class vs tuple huge memory overhead (?)

Question

I\'m storing a lot of complex data in tuples/lists, but would prefer to use small wrapper classes to make the data structures easier to understand, e.g.

class Pe         


        

Answer 1

In your second example, you only create one object, because tuples are constants.

>>> l = [('foo', 'bar') for i in range(10000000)]
>>> id(l[0])
4330463176
>>> id(l[1])
4330463176

Classes have the overhead, that the attributes are saved in a dictionary. Therefore namedtuples needs only half the memory.