# Script that inputs currency code, then outputs exchange rate.

from urllib.request import urlopen
from json import loads

# Define URL for reading exchange rates in JSON format.
url = "http://facweb.cdm.depaul.edu/sjost/it212/rates.json.txt"

# Open input stream
input_stream = urlopen(url)

# Read  raw bytes from input stream
rawbytes = input_stream.readline( )
print(rawchars)

input_stream.close( )

# Decode
json_string = rawchars.decode("utf-8-sig").strip( )

# Load dictionary from JSON string
exchange_rates = loads(json_string)

# Input currency code
currency_code = input("Enter currency code: ")

# Look up exchange rate in dictionary
if currency_code in exchange_rates:
    print("Exchange rate: ", exchange_rates[currency_code])
else:
    print("Currency code not in dictionary.")