CODEWITHSUNDEEP
pythonarraysdjangostring
Khoa Nguyen
Khoa Nguyen

Reputation: 91

How to convert an string with array form to an array?

I got a string in this form

payload = ["Text 1", "Text 2"]

I want to use Text 2 as an object. How can I return it?

UPDATE I'm making a function which returns a generic template Facebook API. The first payload works well, but I want to return a string and a object in the second payload ( result )

button = [
            {
                "type": "postback",
                "title": "Buy item",
                "payload": "Buy this item: " + (product['id'])
            },
            {
                "type": "postback",
                "title": "Add to wishlist",
                "payload": result
            }
        ]

My second payload should look like this:

payload = {
            'Order_item',
            product['title']
        }

Because I got this error [buttons][1][payload] must be a UTF-8 encoded string so I did convert it and it returns a STRING in this form ["Order_item", "Ledverlichting Fiets Blauw"]

Because I want that when a Facebook user clicks on a postback ( Add to wishlist ), the product['title'] value will be save in Django database. And product['title'] is the Text 2 in the question above.

Upvotes: 0

Views: 140

Answers (4)

Mike Cameron
Mike Cameron

Reputation: 199

I had a string that was in strictly list format and simply passing it through eval() worked.

Upvotes: 0

m.antkowicz
m.antkowicz

Reputation: 13571

You need to split the string then trim and keep splitting/trimming to get all parts that you want to have in list

s = 'payload = ["Text 1", "Text 2"]'
items = s.strip()[1:-1]
#if 'payload = ' is also part of string you need to split it also by '=' so it would be:
#items = s.split("=").strip()[1:-1] 
l = [item.strip()[1:-1] for item in items.split(",")]

then you have list of string that you can iterate, get n-th item and so on

the_item = l[1]
return the_item

Upvotes: 3

Kevin Kloet
Kevin Kloet

Reputation: 1086

assuming that you want a string object, you can get the specific index in the array(first spot = 0, second spot = 1, etc).

you can save the string object contained in the array like this:

payload = ["Text 1", "Text 2"]
s = payload[1]

and than you can return the s object.

Upvotes: 1

Harsha Biyani
Harsha Biyani

Reputation: 7268

you can try:

>>> payload = ["t1", "t2"]
>>> t2 = [1,2]
>>> eval(payload[1])
[1, 2]

Upvotes: 0

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