Activity Overview:

Learning Objective: This activity provides an opportunity to apply your Python programming

skills to a real$-$world problem in the domain of currency conversion. By completing this activity,

you will gain practical experience of using python basic constructs in designing and implementing

software solutions and enhance your ability to develop user$-$friendly applications.

Introduction: Your task is to develop a simple currency converter program in Python. The

program should allow users to convert currency values between United Arab Emirates Dirham

$($AED$),$ Euro $($EUR$),$ British Pound $($GBP$),$ and US Dollar $($USD$).$ You are required to design and

implement the program based on the provided description.

Activity Components

Understanding the Requirements:

Your activity involves creating a Python program that facilitates currency conversion

between AED and other major currencies.

The program should present users with a menu allowing them to choose the direction of

conversion $($AED to other currencies or other currencies to AED$).$

Users should be prompted to enter the amount they want to convert and select the

currency they want to convert to$/$from$.$Designing and Implementing the Solution:

Design a modular solution that consists of functions to perform currency conversion

operations.

Write Python functions to perform currency conversion operations. These functions

should handle conversion between AED and Euro, British Pound, and US Dollar, as well as

conversion from other currencies to AED.

Implement a main function that presents users with a menu to select the conversion

direction and guides them through the conversion process.

All the input data must be positive. Therefore, you need to validate the input.

Implementation Requirements:

The user interface should provide clear instructions and options for selecting the

conversion direction and entering currency amounts.

Use constants to represent conversion rates between currencies. Constants should be

defined for conversion rates from AED to Euro, British Pound, and US Dollar.

Your solution should include the following functions with the given signatures:

For AED to other currencies menu option:

def aed$\_$to$\_$euro$($money$)$:

def aed$\_$to$\_$british$\_$pound$($money$)$:

def aed$\_$to$\_$dollar$($money$)$:

For other currencies to AED menu option:

def dollar$\_$to$\_$aed$($amount$)$:

def british$\_$pound$\_$to$\_$aed$($amount$)$:

def euro$\_$to$\_$aed$($amount$)$:Sample Runs:

Run $1$: The user chooses to convert from AED to other currencies. Then, he$/$she chooses to convert $100$

AED to British Pound. Thus, the result is $21\mathrm{.}48$ GBP$.$ Then the program asks the user if he$/$she want to

make another conversion and so on$.$Run $2$: The user enters a wrong choice value $($e$.$g$.4)$ as conversion direction. Since this option is invalid,

the program displays the "Invalid choice" message and ask the user to re$-$enter a correct choice and etc.

Once, the user enters a correct choice e$.$g$.1),$ the program stops asking and now it is waiting for user to

enter the amount, etc.Run $3$: The user enters an invalid amount value $($e$.$g$.-100).$ Since this amount is invalid, the program

displays the "Invalid amount" message and ask the user to re$-$enter a correct amount and etc.