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Call EC2 DescribeInstances using botocore
import botocore.session
session = botocore.session.get_session()
ec2 = session.get_service('ec2')
operation = ec2.get_operation('DescribeInstances')
endpoint = ec2.get_endpoint('us-west-2')
# Calling with no parameters will return all instances
# associated with this account in this region.
http_response, data =
# You could also limit the results to only certain
# instances by passing a list of ID's you want returned.
http_response, data =, instance_ids=['i-12345678'])
# Finally, you can use filters to further restrict
# the results.
http_response, data =, filters=[{'Name':'instance-state-name', 'Values':['running']}])
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