Why does Python not support record type? (i.e. mutable namedtuple)

Question

Why does Python not support a record type natively? It\'s a matter of having a mutable version of namedtuple.

I could use namedtuple._replace. But I nee

Answer 1

Based on several useful tricks gathered over time, this "frozenclass" decorator does pretty much everything needed: http://pastebin.com/fsuVyM45

Since that code is over 70% documentation and tests, I won't say more here.