How to use namedtuples in multiple inheritance

Question

Is it possible to create a class that inherits from multiple instances of namedtuple, or create something to the same effect (having an immutable type that combines the fiel

Answer 1

This code adopts a similar approach to Francis Colas', although it's somewhat longer :)

It's a factory function that takes any number of parent namedtuples, and creates a new namedtuple that has all the fields in the parents, in order, skipping any duplicate field names.

from collections import namedtuple

def combined_namedtuple(typename, *parents):
    #Gather fields, in order, from parents, skipping dupes
    fields = []
    for t in parents:
        for f in t._fields:
            if f not in fields:
                fields.append(f)
    return namedtuple(typename, fields)

nt1 = namedtuple('One', ['foo', 'qux'])
nt2 = namedtuple('Two', ['bar', 'baz'])    

Combo = combined_namedtuple('Combo', nt1, nt2)    
ct = Combo(1, 2, 3, 4)
print ct

output

Combo(foo=1, qux=2, bar=3, baz=4)