Two simple Python tasks

The following are exchange rates of US$ to some other currencies.

• US $1=A$1.28$1=A$1.28
• US $1 = 0.83 euro
• US $1 = 6.46 CNY
• US $1 = 72.82 INR
• US $1 = 106.93 JPY

Currency codes:

• US $ = US dollar
• A $ = Australian dollar
• CNY = Chinese Yuan
• INR = Indian Rupee
• JPY = Japanese Yen

TASK 1

Write a Python function which prompts user for keyboard inputs. First prompting for the currency with text From meaning the currency to convert from. Then checks whether it is in correct form:

• US $
• A $
• euro
• CNY
• INR

Then the program queries To, the currency to convert to and again checks for correct currency code. Finally, the program asks for amount. Which should be a decimal number. It then prints out the converted amount and the correct currency as follows.

Example

100US$=128?$100US$=128A$undefinedviaundefined

In [1]:

##functions to check correct inputs

#the function outputs 1 if code is correct 0 otherwise

def check_currency_code(currency):

    pass

###############Your Code ins place of "pass"############

def convert_Currency(fromC, toC, amnt):

    conv = 0

    pass

###############Your Code ins place of "pass"############

In [2]:

##Code template

def currencyConverter():

    fromCurrency = input("From")

    toCurrency = input("To")

    amount = input("Amount")

    if (check_currency_code(fromCurrency) and check_currency_code(toCurrency) and check_amount(amnt)):

        converted_amnt = convert_currency(fromCurrency, toCurrency, amnt)

        print(amnt, 's', fromCurrency, "s=s", )

    else:

        print("One of the inputs is not in the correct form.")

TASK 2

You are provided with a text file. You will do some basic text processing.

Write a function that gives the following outputs.

1. Ratio of the alphanumeric characters to the number of non-alphanumeric characters that are not whitespace characters.
2. Number of articles in the text.
3. Number of words of length at least 3.
4. The five most frequently occuring letters and their frequency counts. Ignore case.

Hint. You should try using regex. The built in function str.split() may be useful.