1. What is the issue with the command, and how would you fix it?

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response = {
    "instances": [
        {
            "id": "i-123456789abcdef10",
            "name": "instance1",
            "type": "t2.micro",
            "ami_id": "ami-ea45f78a",
        },
        {
            "id": "i-111213141516171819",
            "name": "instance2",
            "type": "t2.small",
            "ami_id": "ami-ea45f78a"
        },
        {
            "id": "i-1a1b1c1d1e1f202122",
            "name": "instance3",
            "type": "t2.micro",
            "ami_id": "ami-ea45f78a",
        },
        
        ]
}

set([i[ami_id]for i in response["instances"]])

What I have tried:

Traceback (most recent call last): File "/Users/oluwaseyibamigbade/Library/Containers/uk.co.insi
li.Run-Python/Data/5870.py", line 25, in <module>
   
 set([i[ami_id]for i in response["instances"]])
NameError: name 'ami_id' is not defined

Posted 25-Jul-17 16:30pm

Member 13328753

Updated 25-Jul-17 21:27pm

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David_Wimbley · Answer 1 · 2017-07-25T16:41:00

Solution 1

I'm not python expert and your code isn't very clear so I am assuming set([i[ami_id]for i in response["instances"]]) is the call that is causing the error.

I think you need to change i[ami_id] to i[self.ami_id] in order for you to access instance members.

Posted 25-Jul-17 16:41pm

David_Wimbley

Haranadh gupta · Answer 2 · 2017-07-25T21:26:00

Solution 2

ami_id

is not a declared variable, and it is a key in your dictionary, you just need to put it into double quotes. and then execute.

For example you would try with:

data = set([i["ami_id"]for i in response["instances"]])

Posted 25-Jul-17 21:26pm

Haranadh gupta

Richard MacCutchan · Answer 3 · 2017-07-25T21:27:00

Solution 3

Your set comprehension needs a quoted string for ami_id thus:

Python

set([i["ami_id"]for i in response["instances"]])

Posted 25-Jul-17 21:27pm

Richard MacCutchan