Tercera_Ventana = Tk()
Tercera_Ventana.geometry("300x400")
Tercera_Ventana.maxsize(300,400)
Tercera_Ventana.minsize(300,400)
Tercera_Ventana.title("Tercera Ventana")
Tercera_Ventana.configure(background="gold", highlightbackground="gold", highlightcolor="black")
def Impresion():
Mensaje = tk.Message(Tercera_Ventana)
Mensaje.place(relx=0.25, rely=0.55, height=44, width=157)
Mensaje.configure(background="white", foreground="#000000", highlightbackground="#d9d9d9", highlightcolor="black", justify='center', text='''Hola, Mundo''')
return
def Limpieza():
Mensaje = tk.Message(Tercera_Ventana)
Mensaje.place(relx=0.25, rely=0.55, height=44, width=157)
Mensaje.configure(background="white", foreground="#000000", highlightbackground="#d9d9d9", highlightcolor="black", justify='center', text=''' ''')
return
Boton_Impresion = Button(Tercera_Ventana, activebackground="#ececec", activeforeground="#000000", background="#d9d9d9", disabledforeground="#a3a3a3", foreground="#000000", highlightbackground="#d9d9d9", highlightcolor="black", pady="0", text='''Imprimir''', command = Impresion).place(relx=0.25, rely=0.35, height=44, width=157)
Boton_Limpieza = Button(Tercera_Ventana, activebackground="#ececec", activeforeground="#000000", background="#d9d9d9", disabledforeground="#a3a3a3", foreground="#000000", highlightbackground="#d9d9d9", highlightcolor="black", pady="0", text='''Limpieza''', command = Limpieza).place(relx=0.25, rely=0.75, height=44, width=157)
Mensaje = tk.Message(Tercera_Ventana)
Mensaje.place(relx=0.25, rely=0.55, height=44, width=157)
Mensaje.configure(background="white", foreground="#000000", highlightbackground="#d9d9d9", highlightcolor="black", justify='center', text=''' ''')
Tercera_Ventana.mainloop()
Al ejecutar el código genera la siguiente interfaz.


Entrada.place(relx=0.04, rely=0.05, height=40, width=265)
Entrada.configure(background="white",foreground="#000000",highlightbackground="#d9d9d9",highlightcolor="black",justify='right',text=''' ''')
Entrada.insert(tk.END,"")
try:
Op = Entrada.get()
Resutlado = eval(Op)
Entrada.delete(0,tk.END)
Entrada.insert(tk.END,"")
Entrada.insert(tk.END,Resutlado)
except SyntaxError:
print("Introduce el número faltante")
finally:
pass
return
En la siguiente función se ingresan los dígitos y los operadores con los cuales se construyen las operaciones que se desean calcular.
def Click(Objeto):
global i
Entrada.insert(i,Objeto)
i += 1
return
def Operacion():
try:
Op = Entrada.get()
Resutlado = eval(Op)
Entrada.delete(0,tk.END)
Entrada.insert(tk.END,"")
Entrada.insert(tk.END,Resutlado)
except SyntaxError:
print("Introduce el número faltante")
finally:
pass
return
Por último se encuentra la función Limpieza la cual limpia la Entrada.
def Limpieza():
Entrada.delete(0,tk.END)
Entrada.insert(tk.END,"")
return
El código completo se muestra a continuación:
Cuarta_Ventana.geometry("290x200")
Cuarta_Ventana.maxsize(290,200)
Cuarta_Ventana.minsize(290,200)
Cuarta_Ventana.title("Calculardora 1")
Cuarta_Ventana.configure(background="green2",highlightbackground="green2",highlightcolor="black")
Entrada = tk.Entry(Cuarta_Ventana)
Entrada.place(relx=0.04, rely=0.05, height=40, width=265)
Entrada.configure(background="white",foreground="#000000",highlightbackground="#d9d9d9",highlightcolor="black",justify='right',text=''' ''')
Entrada.delete(0,tk.END)
Entrada.insert(tk.END,"")
i = 0
def Click(Objeto):
global i
Entrada.insert(i,Objeto)
i += 1
return
def Operacion():
try:
Op = Entrada.get()
Resutlado = eval(Op)
Entrada.delete(0,tk.END)
Entrada.insert(tk.END,"")
Entrada.insert(tk.END,Resutlado)
except SyntaxError:
print("Introduce el número faltante")
finally:
pass
return
def Limpieza():
Entrada.delete(0,tk.END)
Entrada.insert(tk.END,"")
return
# Numeros
Boton_1_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''1''',command = lambda: Click(1)).place(relx=0.06, rely=0.30, height=40, width=40)
Boton_2_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''2''',command = lambda: Click(2)).place(relx=0.21, rely=0.30, height=40, width=40)
Boton_3_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''3''',command = lambda: Click(3)).place(relx=0.36, rely=0.30, height=40, width=40)
Boton_4_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''4''',command = lambda: Click(4)).place(relx=0.06, rely=0.52, height=40, width=40)
Boton_5_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''5''',command = lambda: Click(5)).place(relx=0.21, rely=0.52, height=40, width=40)
Boton_6_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''6''',command = lambda: Click(6)).place(relx=0.36, rely=0.52, height=40, width=40)
Boton_7_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''7''',command = lambda: Click(7)).place(relx=0.06, rely=0.74, height=40, width=40)
Boton_8_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''8''',command = lambda: Click(8)).place(relx=0.21, rely=0.74, height=40, width=40)
Boton_9_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''9''',command = lambda: Click(9)).place(relx=0.36, rely=0.74, height=40, width=40)
Boton_0_ = Button(Cuarta_Ventana,activebackground="orange",activeforeground="#000000",background="yellow",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="yellow",highlightcolor="black",pady="0",text='''0''',command = lambda: Click(0)).place(relx=0.51, rely=0.74, height=40, width=40)
# Operaciones
Boton_suma_ = Button(Cuarta_Ventana,activebackground="pink",activeforeground="#000000",background="salmon",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="salmon",highlightcolor="black",pady="0",text='''+''', command =lambda: Click("+")).place(relx=0.51, rely=0.30, height=40, width=40)
Boton_resta_ = Button(Cuarta_Ventana,activebackground="pink",activeforeground="#000000",background="salmon",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="salmon",highlightcolor="black",pady="0",text='''-''', command =lambda: Click("-")).place(relx=0.51, rely=0.52, height=40, width=40)
Boton_multi_ = Button(Cuarta_Ventana,activebackground="pink",activeforeground="#000000",background="salmon",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="salmon",highlightcolor="black",pady="0",text='''*''', command =lambda: Click("*")).place(relx=0.66, rely=0.30, height=40, width=40)
Boton_divic_ = Button(Cuarta_Ventana,activebackground="#ece",activeforeground="#000000",background="salmon",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="salmon",highlightcolor="black",pady="0",text='''/''', command =lambda: Click("/")).place(relx=0.66, rely=0.52, height=40, width=40)
Boton_C_ = Button(Cuarta_Ventana,activebackground="pink",activeforeground="#000000",background="salmon",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="salmon",highlightcolor="black",pady="0",text='''C''', command =Limpieza).place(relx=0.66, rely=0.74, height=40, width=40)
Boton_1_ = Button(Cuarta_Ventana,activebackground="pink",activeforeground="#000000",background="salmon",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="salmon",highlightcolor="black",pady="0",text='''(''', command = lambda : Click("(")).place(relx=0.81, rely=0.52, height=40, width=40)
Boton_2_ = Button(Cuarta_Ventana,activebackground="pink",activeforeground="#000000",background="salmon",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="salmon",highlightcolor="black",pady="0",text=''')''', command = lambda : Click(")")).place(relx=0.81, rely=0.30, height=40, width=40)
Boton_igual_ = Button(Cuarta_Ventana,activebackground="#ececec",activeforeground="#000000",background="DodgerBlue2",disabledforeground="#a3a3a3",foreground="#000000",highlightbackground="DodgerBlue2",highlightcolor="black",pady="0",text='''=''', command =lambda: Operacion()).place(relx=0.81, rely=0.74, height=40, width=40)
Cuarta_Ventana.mainloop()
