process_cart_item() takes exactly 2 arguments (3 given)

[AdrianRibao]

When I add to the cart I get this exception:

Exception Value:    process_cart_item() takes exactly 2 arguments (3 given)

env/lib/python2.7/site-packages/shop/models/defaults/bases.py in update modifier.process_cart_item(self, state)
modifier: <shop_simplevariations.cart_modifier.ProductOptionsModifier object at 0x2500490>
self: <CartItem: CartItem object>

Versions:

• django 1.3.1
• django-shop 0.0.10
• django-shop-simplevariations 0.0.3

Settings:

SHOP_CART_MODIFIERS = ['shop_simplevariations.cart_modifier.ProductOptionsModifier']

[AdrianRibao]

The process_cart_item method now takes a third argument: state:

def process_cart_item(self, cart_item, state):
    ....