from tkinter import *

root = Tk ()
root.geometry("450x250")
root.resizable(0, 0)
root.config(bg="#d9ead3")
root.title("Temperatura e Febre")

def limpar():
    Temperatura_entrada.delete(0, END)
def app():
    t = Temperatura.get()
    if t>41:
        mensagem = "Hipertermia"
        resulatdoresultado['fg'] = "red"
    elif t < 36:
        mensagem = "Hipotermia"
        resulatdoresultado['fg'] = "blue"
    elif t < 37.6:
        mensagem = "Normal"
        resulatdoresultado['fg'] = "green"
    elif t < 39.6:
        mensagem = "Febre"
        resulatdoresultado['fg'] = "orange"
    else:
        mensagem = "Febre alta"
        resulatdoresultado['fg'] = "#FF5349"
    resultado.set(mensagem)

titulo = Label(text="Temperatura e Febre ",
                            bg="#d9ead3", fg="#0b5394",
                                font=("Arial", "15", "bold"))
titulo.place(relx=0.3, rely=0.05)
Temperatura_texto = Label(text="Temperatura: ",
                            bg="#d9ead3", fg="#0b5394",
                                font=("Arial", "12", "bold"))
Temperatura_texto.place(relx=0.2, rely=0.35)

Temperatura = DoubleVar()
Temperatura_entrada = Entry(textvariable=Temperatura,
                                  font=("Arial", "12", "bold"),
                                  bg="white", fg="blue", justify='center')
Temperatura_entrada.place(relx=0.5, rely=0.35, relwidth=0.25)

but1 = Button(text="Mostrar", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.3, rely=0.55, 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=0.55, 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)
root.mainloop()