convert usd to aud using python CurrencyConverter

#!/usr/bin/env python2.7

import argparse
import boto3
import datetime
from currency_converter import CurrencyConverter

parser = argparse.ArgumentParser()
parser.add_argument('--days', type=int, default=30)
args = parser.parse_args()


now = datetime.datetime.utcnow()
start = (now - datetime.timedelta(days=args.days)).strftime('%Y-%m-%d')
end = now.strftime('%Y-%m-%d')
dtemplate="{:10} {:14} {:40} {:16.10f} {:6} {:10}"
htemplate="{:10} {:14} {:40} {:16} {:6} {:10}"

cd = boto3.client('ce', 'ap-southeast-2')

results = []

token = None
while True:
    if token:
        kwargs = {'NextPageToken': token}
    else:
        kwargs = {}
    data = cd.get_cost_and_usage(TimePeriod={'Start': start, 'End':  end}, Granularity='DAILY', Metrics=['UnblendedCost'], GroupBy=[{'Type': 'DIMENSION', 'Key': 'LINKED_ACCOUNT'}, {'Type': 'DIMENSION', 'Key': 'SERVICE'}], **kwargs)
    results += data['ResultsByTime']
    token = data.get('NextPageToken')
    if not token:
        break

print(htemplate.format("TimePeriod", "LinkedAccount", "Service", "Amount", "Unit", "Estimated"))

for result_by_time in results:
    for group in result_by_time['Groups']:
        amount = group['Metrics']['UnblendedCost']['Amount']
        unit = group['Metrics']['UnblendedCost']['Unit']
        print(dtemplate.format(result_by_time['TimePeriod']['Start'], group['Keys'][0],  group['Keys'][1], float(amount), unit,  result_by_time['Estimated']))

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