Added two new codes - To Do List Manager and Currency Converter

currency-converter.py

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+# Dictionary of exchange rates (as of a specific date)
+exchange_rates = {
+    'USD': 1.0,
+    'EUR': 0.85,
+    'GBP': 0.73,
+    'JPY': 109.29,
+    'CAD': 1.25,
+}
+
+# Function to convert an amount from one currency to another
+def convert_currency(amount, from_currency, to_currency):
+    if from_currency in exchange_rates and to_currency in exchange_rates:
+        rate_from = exchange_rates[from_currency]
+        rate_to = exchange_rates[to_currency]
+        converted_amount = amount * (rate_to / rate_from)
+        return converted_amount
+    else:
+        return "Invalid currency code(s)."
+
+# Main program loop
+while True:
+    print("\nCurrency Converter")
+    print("Available Currencies:")
+    for currency in exchange_rates:
+        print(currency, end=' ')
+    print()
+
+    from_currency = input("Enter the source currency code (e.g., USD): ").upper()
+    to_currency = input("Enter the target currency code (e.g., EUR): ").upper()
+
+    try:
+        amount = float(input("Enter the amount to convert: "))
+    except ValueError:
+        print("Invalid amount. Please enter a valid number.")
+        continue
+
+    result = convert_currency(amount, from_currency, to_currency)
+
+    if isinstance(result, (float, int)):
+        print(f"{amount} {from_currency} is equal to {result} {to_currency}")
+    else:
+        print(result)
+
+    another_conversion = input("Do another conversion? (yes/no): ").lower()
+    if another_conversion != "yes":
+        print("Goodbye!")
+        break

to-do-list.py

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+# Initialize an empty to-do list
+todo_list = []
+
+# Function to add a task to the to-do list
+def add_task():
+    task = input("Enter a task: ")
+    todo_list.append(task)
+    print("Task added to the to-do list.")
+
+# Function to view the to-do list
+def view_tasks():
+    if not todo_list:
+        print("Your to-do list is empty.")
+    else:
+        print("To-Do List:")
+        for i, task in enumerate(todo_list, start=1):
+            print(f"{i}. {task}")
+
+# Function to remove a task from the to-do list
+def remove_task():
+    view_tasks()
+    task_index = int(input("Enter the number of the task to remove: "))
+
+    if 1 <= task_index <= len(todo_list):
+        removed_task = todo_list.pop(task_index - 1)
+        print(f"Task '{removed_task}' removed from the to-do list.")
+    else:
+        print("Invalid task number. No task removed.")
+
+# Main program loop
+while True:
+    print("\nTo-Do List Manager")
+    print("1. Add Task")
+    print("2. View Tasks")
+    print("3. Remove Task")
+    print("4. Quit")
+
+    choice = input("Enter your choice: ")
+
+    if choice == '1':
+        add_task()
+    elif choice == '2':
+        view_tasks()
+    elif choice == '3':
+        remove_task()
+    elif choice == '4':
+        print("Goodbye!")
+        break
+    else:
+        print("Invalid choice. Please select a valid option.")