CloudTrail Service - API response missing "EventSelectors" results in unhandled KeyError

[rehamkhalil3]

My lambda function using AWslimitchecker API was working for 1 year and half then yesterday while running the lambda function this error pop-out without changing any thing in codes or repository

Bug Report

"errorMessage": "'EventSelectors'", "errorType": "KeyError", from cloudtrail.py

Actual Output

"errorMessage": "'EventSelectors'", "errorType": "KeyError", from cloudtrail.py

Expected Output

getting all Aws services quotas limits if the usage exceeds the critical thresholds

kindly help why the cloudtrail cause that error and how to resolve it so the lambda function will work again

[jantman]

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Version

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the exact command used and whether it was installed in a virtualenv or not).

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Expected Output

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[rehamkhalil3]

Version
awslimitchecker version, as reported by awslimitchecker --version (12.0.0)

Installation Method
using Awslimitchecker API with terraform code to create the awslimitchecker tool lambda function
[from awslimitchecker.checker import AwsLimitChecker]

Supporting Software Versions
The output of python --version and virtualenv --version in the environment
that awslimitchecker is running in, as well as your operating system type and version.

Actual Output
when running the main.py this error pops-out
[ thresholds = c.check_thresholds()
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/awslimitchecker/checker.py", line 633, in check_thresholds
tmp = cls.check_thresholds()
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/awslimitchecker/services/base.py", line 281, in check_thresholds
self.find_usage()
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/awslimitchecker/services/cloudtrail.py", line 67, in find_usage
self._find_usage_cloudtrail()
File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/awslimitchecker/services/cloudtrail.py", line 92, in _find_usage_cloudtrail
event_selectors = response['EventSelectors']
KeyError: 'EventSelectors'

Process finished with exit code 1]
Expected Output
sending all critical and warning limit thresholds for Aws services that mentioned below in a config.json file- we are not monitoring all services just the ones that we are using also the issue with region us-west-2 that we are using the most

TrustedAdvisor
no

Testing Assistance
want to fix the bug - the lambda function was working fine for year and half then this error takes place and also the cloud trail service is not mentioned from the beginning in the config.file -we don't need to monitor this service and it's causing issues - i have tried now to add it to the config file and also still getting same issue for only region us-west-2 but the rest of regions are working fine

[rehamkhalil3]

when i commented the line 92 in cloudtrail.py file it worked -so how to remove the line in my lambda because it can work localy but when i use my lambda function still taking the api from your repo and from cloudtrail.py

[rehamkhalil3]

did you change anything regarding region:us-west-2 ?

[rehamkhalil3]

after investigating by adding print statement to line 89 before the "EventSelectors"exception :

1.print(TrailName) the tool worked locally but still the lambda function using the global awslimitchecker api's which don't have the print statement 

[jantman]

Apologies for the delayed response.

I have not changed anything in awslimitchecker in a year and a half. This looks like AWS has changed their CloudTrail API responses.

As a workaround, if you don't need to monitor the CloudTrail service, there are instructions in the documentation for how to skip specific services when calling AwsLimitChecker via Python: https://awslimitchecker.readthedocs.io/en/latest/python_usage.html#skipping-specific-services

[rehamkhalil3]

thank you so much by skipping the cloudtrail the lambda function worked again