Missing an argument in function

[syntaxbluff]

im pretty sure i added that argument (item) and still getting this weird error .. >,<

#!/usr/bin/python
# -*- coding: utf-8 -*-

import os

from collections import namedtuple
Item = namedtuple("Item", ['index', 'value', 'weight'])

def O(k , j ,  item):
   if j == 0 : #base case 
       return 0
   elif item[j-1].weight >= k :
       return max(O(k,j-1,item) , item[j-1].value + O(k-item[j-1].weight,j-1,item))
   else:
       return O(k,j-1)



items = []
items.append(Item(1,8,4))
items.append(Item(2,10,5))
items.append(Item(3,15,8))
items.append(Item(4,4,3))


x= O(11,4,item = items)

print(x)

[Larz60+]

return o(k, j-1)

is missing the third argument
you are creating a recursive call to O here (before that actual return), and o requires 3 arguments

you must either supply one, or set a default value like:

def O(k , j ,  item=1):

In any case, it's bad practice to use single letter names. Hard to read, gives no indication of what it does, and leads to errors.

[syntaxbluff]

Thanks man <3 ..