Extract Method

• Problema: Fragmento de código que puede agruparse.
• Solución: Extraer el fragmento a un método separado.
• Code Smells que resuelve: Método Largo, Comentarios Explicativos, Duplicación

def render_report(data):
    # Imprimir encabezado
    print("=== REPORT ===")
    print(f"Date: {datetime.now().strftime('%Y-%m-%d')}")
    print(f"Total Items: {len(data)}")
    print("=============")
    
    # Procesar datos
    total = 0
    for item in data:
        total += item['amount']
        print(f"{item['name']}: ${item['amount']}")
    
    # Imprimir resumen
    print("=============")
    print(f"Total: ${total}")
    print("=== END ===")

def render_report(data):
    print_header(data)
    total = process_items(data)
    print_footer(total)

def print_header(data):
    print("=== REPORT ===")
    print(f"Date: {datetime.now().strftime('%Y-%m-%d')}")
    print(f"Total Items: {len(data)}")
    print("=============")

def process_items(data):
    total = 0
    for item in data:
        total += item['amount']
        print(f"{item['name']}: ${item['amount']}")
    return total

def print_footer(total):
    print("=============")
    print(f"Total: ${total}")
    print("=== END ===")