Question

This is a python question.

from urllib import request import json

""" Complete this program that calculates conversions between US dollars and other currencies. In your main function, start a loop. In the loop, ask the user what currency code they would like to convert to And, how many dollars they want to convert. If you scroll down, you can see an example response with the available 3-letter currency codes. Call the get_exchange_rates() function. This function returns a dictionary with another dictionary inside it. You'll need to get the exchange rate from the dictionary.

If the user enters a currency code that is not in the dictionary, your program should not crash. It should print a message saying the code was not found, and repeat the loop so they can try again. Then, do the math. For example, if the user wants to convert $100 to Euros (EUR), and the exchange rate is 0.874, then you need to multiply the US Dollar amount by the exchange rate to get the amount in Euros. So to convert $100 to Euro, 100 * 0.874 = 87.4 Euro. Display the result to the user. Format the number to 2 decimal places. Don't modify the get_exchange_rates function or the example_exchange_rates function. These functions get data from exchangeratesapi.io. If this site is not available or your computer is not online, then get_exchange_rates will return an example dictionary that is the same structure as the exchangeratesapi.io response. This is not an error - your program will do the same thing for real data as it does for example data.

""" def main():

print('Remove this print statement, and then write your code here.')

# You do not need to modify any code below here.

def get_exchange_rates():

"""" Connect to the exchangeratesapi.io server and request the latest exchange rates, relative to US Dollars.

Return the response as a dictionary. """ url = 'https://api.exchangeratesapi.io/latest?base=USD'

try: # Attempt to connect to the exchangeratesapi server response = request.urlopen(url).read() # and get the server's response data = json.loads(response) # convert the response to a Python dictionry return data # return the dictionary

except: # this code runs if there's any error fetching data. # It returns some example data, that has the same structure as real data, to use instead # So it's no problem if you don't have an internet connection or there exchangeratesapi server is down. print('There was an error fetching real data. Perhaps you are offline? Returning example data.') return example_exchange_rates()

def example_exchange_rates():

""" In case the exchangeratesapi.io is not available, the program will use this example data. This data has the same structure as real data, so your program doesn't need to worry if real data or example data is used. """

example_data = { "base": "USD", "date": "2019-01-30", "rates": { "ISK": 119.8705048561, "CAD": 1.3221629189, "MXN": 19.0960713973, "CHF": 0.9977250853, "AUD": 1.3898853793, "CNY": 6.7168606177, "GBP": 0.7642050923, "USD": 1.0, "SEK": 9.0859217779, "NOK": 8.4817569341, "TRY": 5.2750021874, "IDR": 14130.0026249016, "ZAR": 13.6043398373, "HRK": 6.4953189255, "EUR": 0.8749671887, "HKD": 7.8451308076, "ILS": 3.6677749584, "NZD": 1.4632076297, "MYR": 4.1057835331, "JPY": 109.4408959664, "CZK": 22.5759034036, "SGD": 1.3510368361, "RUB": 65.9388397935, "RON": 4.1605564791, "HUF": 276.9533642488, "BGN": 1.7112608277, "INR": 71.1794557704, "KRW": 1118.1905678537, "DKK": 6.5314550704, "THB": 31.3798232566, "PHP": 52.3002887392, "PLN": 3.7540467232, "BRL": 3.7091609065 } } return example_data

main()

Answer 1

Python3:

code:

from urllib import request
import json

""" Complete this program that calculates conversions between US dollars and other currencies. In your main function, start a loop. In the loop, ask the user what currency code they would like to convert to And, how many dollars they want to convert. If you scroll down, you can see an example response with the available 3-letter currency codes. Call the get_exchange_rates() function. This function returns a dictionary with another dictionary inside it. You'll need to get the exchange rate from the dictionary.

If the user enters a currency code that is not in the dictionary, your program should not crash. It should print a message saying the code was not found, and repeat the loop so they can try again. Then, do the math. For example, if the user wants to convert $100 to Euros (EUR), and the exchange rate is 0.874, then you need to multiply the US Dollar amount by the exchange rate to get the amount in Euros. So to convert $100 to Euro, 100 * 0.874 = 87.4 Euro. Display the result to the user. Format the number to 2 decimal places. Don't modify the get_exchange_rates function or the example_exchange_rates function. These functions get data from exchangeratesapi.io. If this site is not available or your computer is not online, then get_exchange_rates will return an example dictionary that is the same structure as the exchangeratesapi.io response. This is not an error - your program will do the same thing for real data as it does for example data.
"""
def main():
   choice='y'
   while choice=='y' or choice=='Y':
       cur_code=input("Enter currency code: ").upper()
       dollars=int(input("Enter number of dollar you want to convert: ").strip())
       data=get_exchange_rates()
       if cur_code in data["rates"].keys():
           curcodevsdollar=data["rates"][cur_code]
           print("The value is:",str(round(curcodevsdollar*dollars,2)))
       else:
           print("Error: Unable to find currency code")
       choice=input("Do you want to exit(y/n)")
   # You do not need to modify any code below here.

def get_exchange_rates():
   """" Connect to the exchangeratesapi.io server and request the latest exchange rates, relative to US Dollars.
   Return the response as a dictionary. """
   url = 'https://api.exchangeratesapi.io/latest?base=USD'
   try:
       # Attempt to connect to the exchangeratesapi server
       response = request.urlopen(url).read()
       # and get the server's response
       data = json.loads(response)
       # convert the response to a Python dictionry return data
       # return the dictionary
       return data
   except:
       # this code runs if there's any error fetching data.
       # It returns some example data, that has the same structure as real data, to use instead
       # So it's no problem if you don't have an internet connection or there exchangeratesapi server is down. print('There was an error fetching real data. Perhaps you are offline? Returning example data.')
       return example_exchange_rates()

def example_exchange_rates():
   """ In case the exchangeratesapi.io is not available, the program will use this example data. This data has the same structure as real data, so your program doesn't need to worry if real data or example data is used. """
   example_data = { "base": "USD", "date": "2019-01-30", "rates": { "ISK": 119.8705048561, "CAD": 1.3221629189, "MXN": 19.0960713973, "CHF": 0.9977250853, "AUD": 1.3898853793, "CNY": 6.7168606177, "GBP": 0.7642050923, "USD": 1.0, "SEK": 9.0859217779, "NOK": 8.4817569341, "TRY": 5.2750021874, "IDR": 14130.0026249016, "ZAR": 13.6043398373, "HRK": 6.4953189255, "EUR": 0.8749671887, "HKD": 7.8451308076, "ILS": 3.6677749584, "NZD": 1.4632076297, "MYR": 4.1057835331, "JPY": 109.4408959664, "CZK": 22.5759034036, "SGD": 1.3510368361, "RUB": 65.9388397935, "RON": 4.1605564791, "HUF": 276.9533642488, "BGN": 1.7112608277, "INR": 71.1794557704, "KRW": 1118.1905678537, "DKK": 6.5314550704, "THB": 31.3798232566, "PHP": 52.3002887392, "PLN": 3.7540467232, "BRL": 3.7091609065 } }
   return example_data

main()

Sample i/O;

Reference for indendation:

Explanation:

Sample i/o and indendation reference is provided for your understanding.

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