Array not printing properly Python

Question

class Item:
    def __init__(self, name, cost):
        self.name = name
        self.cost = cost


charm = Item("Charm of Capitalism", 20)
talis = Item("Talisman of Truth", 100)
shopArray = [charm, talis]

print("Items for sale: {}" .format(shopArray))

When I print the shopArray the output is

Items for sale: [<__main__.Item object at 0x02174270>, <__main__.Item object at 0x021742B0>]

I want it to display what items are in the shopArray

Any help would be much appreciated

See https://stackoverflow.com/questions/1984162/purpose-of-pythons-repr — khelwood, Oct 31 '17 at 11:04
Possible help from this: https://stackoverflow.com/q/1523660/3991696 — vishwarajanand, Oct 31 '17 at 11:06

score 1 · Accepted Answer · edited Oct 31 '17 at 12:39

1

class Item:
    def __init__(self, name, cost):
        self.name = name
        self.cost = cost

    def __repr__(self):
        return "name: " + self.name + " cost: " + str(self.cost)


charm = Item("Charm of Capitalism", 20)
talis = Item("Talisman of Truth", 100)
shopArray = [charm, talis]

print("Items for sale: {}" .format(shopArray))

You can define how you want your object look like using __repr__. I hope it resolves your question.

edited Oct 31 '17 at 12:39

khelwood

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answered Oct 31 '17 at 11:08

Mahesh Karia

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This answer worked. Thank you – Daniel Gratton Oct 31 '17 at 11:11
@DanielGratton welcome :) – Mahesh Karia Oct 31 '17 at 11:12

ldavid · Answer 2 · 2017-10-31T11:22:30.063

As far as I understood, __repr__ should return an string that can be evaluated into code that instantiates an equivalent object. For reading purposes, you should use the Item.__str__ method:

class Item:
    def __init__(self, name, cost):
        self.name = name
        self.cost = cost

    def __str__(self):
        # Whichever formating you want.
        return '%s: %f' % (self.name, self.cost)


charm = Item("Charm of Capitalism", 20)
talis = Item("Talisman of Truth", 100)
shopArray = [charm, talis]

print("Items for sale: {}" .format(map(str, shopArray)))

Notice that you need to map the list of Items to strs.

Array not printing properly Python

2 Answers2