Desconto Simples Comercial

from tkinter import *
from decimal import Decimal

root = Tk()
root.geometry("600x500")
root.resizable(0, 0)
root.config(bg="#d9ead3")
root.title("Desconto Simples Comercial")

titulo = Label(text="Desconto Simples Comercial",
               font=("Arial", "30", "bold"), bg="#d9ead3", fg="#bf9000")
titulo.place(relx=0.05, rely=0.05)

texto_sub1 = Label(text="Valor Nominal do Título:",
                   font=("Arial", "15", "bold"), bg="#d9ead3", fg="#bf9000")
texto_sub1.place(relx=0.2, rely=0.2)

texto_sub2 = Label(text="Taxa de Desconto(%):",
                   font=("Arial", "15", "bold"), bg="#d9ead3", fg="#bf9000")
texto_sub2.place(relx=0.2, rely=0.35)

texto_sub3 = Label(text="Tempo (antecipação do desconto):",
                   font=("Arial", "15", "bold"), bg="#d9ead3", fg="#bf9000")
texto_sub3.place(relx=0.05, rely=0.5)

Valor_Nominal_Título = DoubleVar()
Valor_Nominal_Título_entrada = Entry(textvariable=Valor_Nominal_Título,
                                      font=("Arial", "12", "bold"),
                                      bg="white", fg="blue", justify='center')
Valor_Nominal_Título_entrada.place(relx=0.65, rely=0.2, relwidth=0.25)

Taxa_Desconto = DoubleVar()
Taxa_Desconto_entrada = Entry(textvariable=Taxa_Desconto,
                              font=("Arial", "12", "bold"),
                              bg="white", fg="blue", justify='center')
Taxa_Desconto_entrada.place(relx=0.65, rely=0.35, relwidth=0.25)

tempo = IntVar()
tempo_entrada = Entry(textvariable=tempo,
                       font=("Arial", "12", "bold"),
                       bg="white", fg="blue", justify='center')
tempo_entrada.place(relx=0.65, rely=0.5, relwidth=0.25)


def limpar():
    tempo_entrada.delete(0, END)
    Taxa_Desconto_entrada.delete(0, END)
    Valor_Nominal_Título_entrada.delete(0, END)
    resultado.set("")


def calcular_desconto():
    try:
        t = tempo.get()
        N = Decimal(Valor_Nominal_Título.get())
        ia = Taxa_Desconto.get()
        i = Decimal(ia) / 100
        d = N * i * t
        resultado.set(f"Valor do Desconto: {d:.2f} €")
    except ValueError:
        resultado.set("Valores inválidos")

but1 = Button(text="Calcular Desconto", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=calcular_desconto)
but1.place(relx=0.05, rely=0.65, relwidth=0.4, relheight=0.1)

but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.5, rely=0.65, relwidth=0.2, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                  font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.75, rely=0.65, relwidth=0.2, relheight=0.1)
resultado = StringVar()
resultado_texto = Label(textvariable=resultado,
                        font=("Arial", 12, "bold"), bg="#d9ead3")
resultado_texto.place(relx=0.05, rely=0.8, relwidth=0.9, relheight=0.1)
root.mainloop()
Mundo em Python

Desconto Simples Comercial
