AWS python SDK getting invoked more than once with scheduled cloudwatch event

[ghost]

This issue is with respect to another issue I had logged a few days ago [https://github.com//issues/292].

I am invoking a lambda from another lambda using python SDK. Both the lambdas belong to the same VPC. The trigger lambda only contains a python script that invokes the second lambda (loader_development) and the code for that is as under:

from __future__ import print_function

import json
import logging
import os
from urllib2 import urlopen,Request,HTTPError
import boto3
import botocore.config

logger = logging.getLogger()
logger.setLevel(logging.INFO)
region = os.environ['AWS_REGION']
cfg = botocore.config.Config(retries={'max_attempts': 0})
def lambda_handler(event, context):
    logger.info('starting loading')
    invokeLambda = boto3.client('lambda', region_name = 'us-east-1', config=cfg)  
    request = {'resource':'/bucketstatus/latest','path':'/bucketstatus/latest','httpMethod':'GET', 'requestContext': {'requestId': context.aws_request_id,'identity': {'userArn': context.invoked_function_arn}}}
    invoke_response = invokeLambda.invoke(FunctionName='loader_development',
                                           InvocationType='RequestResponse',
                                           Payload=json.dumps(request))
    print(invoke_response['Payload'].read())

logger.info('Process Complete')

But, "starting loading" is printing thrice so I think this script is getting invoked thrice. Previously only the loader_development lambda was being retried for which I set the value of max retry attempts to 0. (FYI: I have a cloudwatch event enabled for my trigger cron(0/30 7-9 * * ? *) so does the cloudwatch event also have a retry mechanism?) How do I disable this cloudwatch event from triggering my script more than once?

P.S. This code works if I don't have a scheduled cloudwatch event.