Análise Du Pont (usando Tkinter)

from tkinter import *
root = Tk()
root.geometry("500x500")
root.resizable(0, 0)
root.config(bg="#d9ead3")
root.title("Análise Du Pont")
def limpar():
    Lucro_Líquido_entrada.delete(0, END)
    Vendas_entrada.delete(0, END)
    activo_total_entrada.delete(0, END)
    Alavancagem_Financeira_entrada.delete(0, END)
def app():
    ven = Vendas.get()
    activototal = activo_total.get()
    Alavancagem = Alavancagem_Financeira.get()
    Lucroliquido = Lucro_Líquido.get()
    a = Lucroliquido/ven
    b = ven/activototal
    AnaliseDuPont = a*b*Alavancagem
    AnaliseDuPontarr = round(AnaliseDuPont, 3)
    resultado.set(AnaliseDuPontarr)

titulo = Label(text="Análise Du Pont", bg="#d9ead3", fg="#0b5394",
               font=("Arial", "14", "bold"))
titulo.place(relx=0.35, rely=0.05)

Lucro_Líquido_texto = Label(text="Lucro Líquido: ", 
                            bg="#d9ead3", fg="#0b5394",
                                font=("Arial", "12", "bold"))
Lucro_Líquido_texto.place(relx=0.2, rely=0.15)

Vendas_texto = Label(text="Vendas: ", bg="#d9ead3", fg="#0b5394",
                           font=("Arial", "12", "bold"))
Vendas_texto.place(relx=0.3, rely=0.3)

Ativo_Total_texto = Label(text="Activo Total: ", 
                          bg="#d9ead3", fg="#0b5394",
                      font=("Arial", "12", "bold"))
Ativo_Total_texto.place(relx=0.25, rely=0.45)

Alavancagem_Financeira_texto = Label(text="Alavancagem Financeira: ",
                                     bg="#d9ead3", fg="#0b5394",
                            font=("Arial", "12", "bold"))
Alavancagem_Financeira_texto.place(relx=0.05, rely=0.6)

Lucro_Líquido = DoubleVar()
Lucro_Líquido_entrada = Entry(textvariable=Lucro_Líquido,
                                  font=("Arial", "12", "bold"),
                                  bg="white", fg="blue", justify='center')
Lucro_Líquido_entrada.place(relx=0.5, rely=0.15, relwidth=0.2)

Vendas = DoubleVar()
Vendas_entrada = Entry(textvariable=Vendas,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Vendas_entrada.place(relx=0.5, rely=0.3, relwidth=0.2)
activo_total = DoubleVar()
activo_total_entrada = Entry(textvariable=activo_total,
                        font=("Arial", "12", "bold"),
                        bg="white", fg="blue", justify='center')
activo_total_entrada.place(relx=0.5, rely=0.45, relwidth=0.2)
Alavancagem_Financeira = DoubleVar()
Alavancagem_Financeira_entrada = Entry(textvariable=Alavancagem_Financeira,
                              font=("Arial", "12", "bold"),
                              bg="white", fg="blue", justify='center')
Alavancagem_Financeira_entrada.place(relx=0.5, rely=0.6, relwidth=0.2)
but1 = Button(text="Calcular", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.3, rely=0.7, relwidth=0.2, relheight=0.1)

but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.55, rely=0.7, relwidth=0.2, relheight=0.1)
resultado = StringVar()
resulatdoresultado = Label(textvariable=resultado,
                           font=("Arial", 12, "bold"), bg="#f0f8ff")
resulatdoresultado.place(relx=0.6, rely=0.85, relwidth=0.3)
resulatdo_texto = Label(text="Análise Du Pont",
                        font=("Arial", 12, "bold"), 
                        bg="#d9ead3", fg="#0b5394")
resulatdo_texto.place(relx=0.05, rely=0.85)
root.mainloop()
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Análise Du Pont (usando Tkinter)
