CODEWITHSUNDEEP
pythonamazon-web-servicesboto
user3228188
user3228188

Reputation: 1731

how to process output of boto

When using boto most of the results that i get are in some form of a list and the contents of this list are Objects.

eg:

if i do 

def elb_subnets( availability_zone ):
        conn = boto.vpc.connect_to_region('us-west-2',aws_access_key_id,aws_secret_access_key)
        subnet_list = conn.get_all_subnets(filters={"availability-zone":<availability_zone>})
        return subnet_list;


subnet_list = elb_subnets("us-west-2a")

print subnet_list

[Subnet:subnet-8b9b31e0]

Now the above is a list which has items of type Subnet.

My problem is, I need to get rid of the part "Subnet:" and only pass subnet-8b9b31e0.

I tried using string operations on the list but get errors saying Subnet object doesn't have str operator modules

So how do i get this done?

This is one use case but i come across this with different modules of boto.

Upvotes: 1

Views: 673

Answers (2)

Ben Whaley
Ben Whaley

Reputation: 34426

The subnet object has an id:

subnet_ids = [s.id for s in subnet_list]

This will give you a list of just the subnet IDs as strings.

Upvotes: 1

Cory Kramer
Cory Kramer

Reputation: 118001

You can do something like this, assuming the strings in subnet_list always have the format that you showed.

subnet_list = ["Subnet:subnet-8b9b31e0","Subnet:subnet-1a1a1a1a", "Subnet:subnet-b2b2b2b2"]
strippedList = [i[7:] for i in subnet_list]

Output

['subnet-8b9b31e0', 'subnet-1a1a1a1a', 'subnet-b2b2b2b2']

Upvotes: 0

Related Questions