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

Question

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.

errr payload[1] ? you want an array of 1 string? can you be more specific? — Jean-François Fabre
– Jean-François Fabre ♦, Commented Oct 14, 2016 at 11:58

m.antkowicz · Accepted Answer · 2016-10-14 12:21:44Z

3

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

edited Oct 14, 2016 at 12:21

answered Oct 14, 2016 at 12:02

m.antkowicz

13.7k22 silver badges43 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Kian Over a year ago

You are just returning all the string

Kevin Kloet · Accepted Answer · 2016-10-14 12:15:52Z

1

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.

answered Oct 14, 2016 at 12:15

Kevin Kloet

1,0861 gold badge11 silver badges21 bronze badges

3 Comments

Khoa Nguyen Over a year ago

I have tried this before but it's not an array it returns "

Kevin Kloet Over a year ago

if it returns an empty string it means that the index 1 in the array is an empty string, make sure that the value you need to be in the array actually is in the array.

m.antkowicz Over a year ago

That's not array - the whole ["Text 1", "Text 2"] is a string ;)

Harsha Biyani · Accepted Answer · 2016-10-14 12:02:58Z

0

you can try:

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

answered Oct 14, 2016 at 12:02

Harsha Biyani

7,28810 gold badges42 silver badges64 bronze badges

Comments

Mike Cameron · Accepted Answer · 2017-10-29 05:18:43Z

0

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

answered Oct 29, 2017 at 5:18

Mike Cameron

1991 silver badge11 bronze badges

Collectives™ on Stack Overflow

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

4 Answers 4

1 Comment

3 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

1 Comment

3 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related