CODEWITHSUNDEEP
pythonamazon-web-servicesdictionaryboto3aws-sdk
Anish
Anish

Reputation: 13

Getting KeyError when trying to access key in a dictionary

I'm using Boto3 of AWS to describe the security group and trying to access the FromPort key for all the security groups available in a particular region. But when I'm trying to do so it will list some of the ports and then throws the KeyError.

Code:

import boto3
    
client = boto3.client('ec2')
response = client.describe_security_groups()

for sg in response['SecurityGroups']:
    for ip in sg['IpPermissions']:
        print(ip['FromPort'])

Output:

80
5432
22
22
3622
8443
3
80
3622
8080
5432
22
8443
443
Traceback (most recent call last):
  File ".\a.py", line 8, in <module>
    print(ip['FromPort'])
KeyError: 'FromPort'

Upvotes: 1

Views: 960

Answers (1)

BoarGules
BoarGules

Reputation: 16951

Your code is assuming that the entry you are trying to print is always in the response you get back. You can make the code more robust like this:

Replace

ip['FromPort']

with

ip.get('FromPort','((missing))')

Upvotes: 2

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