Dynamic Calculator

def dynamic_calculator():
    print("Welcome to the Dynamic Calculator!")
    print("You can perform operations like addition (+), subtraction (-), multiplication (*), division (/).")
    print("Type 'exit' to quit the calculator.")
    
    while True:
        # Taking input from the user
        user_input = input("\nEnter your mathematical expression: ")
        
        # Check if the user wants to exit the calculator
        if user_input.lower() == "exit":
            print("Exiting the calculator. Goodbye!")
            break
        
        try:
            # Evaluate the expression using Python's eval() function
            result = eval(user_input)
            print(f"Result: {result}")
        except ZeroDivisionError:
            print("Error: Division by zero is not allowed.")
        except Exception as e:
            print(f"Error: Invalid expression. {e}")

# Run the calculator
if __name__ == "__main__":
    dynamic_calculator()