example of using the aws pricing api

pricing.py

import boto3
import json
from pkg_resources import resource_filename

product_filters = [
    {'Type': 'TERM_MATCH',
     'Field': 'volumeType',
     'Value': 'General Purpose'}
]

# Get current AWS price for an on-demand instance
def get_price(region, instance, os):
    data = client.get_products(ServiceCode='AmazonEC2', Filters=product_filters)
    od = json.loads(data['PriceList'][0])['terms']['OnDemand']
    id1 = list(od)[0]
    id2 = list(od[id1]['priceDimensions'])[0]
    return od[id1]['priceDimensions'][id2]['pricePerUnit']['USD']

# Translate region code to region name
def get_region_name(region_code):
    default_region = 'Europe (London)'
    endpoint_file = resource_filename('botocore', 'data/endpoints.json')
    try:
        with open(endpoint_file, 'r') as f:
            data = json.load(f)
        return data['partitions'][0]['regions'][region_code]['description']
    except IOError:
        return default_region


# Use AWS Pricing API at US-East-1 
client = boto3.client('pricing', region_name='us-east-1')

# Get current price for a given instance, region and os
region_str=get_region_name('eu-west-2')
price = get_price(get_region_name('eu-west-2'), 'c5.xlarge', 'Linux')
print(price)