https://stackoverflow.com/questions/43354059/catching-boto3-clienterror-subclass
If you're using the client you can catch the exceptions like this:
import boto3
def exists(role_name):
client = boto3.client('iam')
try:
client.get_role(RoleName='foo')
return True
except client.exceptions.NoSuchEntityException:
return False
If you're using the resource you can catch the exceptions like this:
cf = session.resource("iam")
role = cf.Role("foo")
try:
role.load()
except cf.meta.client.exceptions.NoSuchEntityException:
# ignore the target exception
pass
This combines the earlier answer with the simple trick of using .meta.client to get from the higher-level resource to the lower-level client (source: https://boto3.amazonaws.com/v1/documentation/api/latest/guide/clients.html#creating-clients).
