Jan-11-2021, 01:46 PM
I'm trying to create a function to delete the last item of a list of things (when you insert the incorrect information and want to delete to insert it again) but sometimes it doensn't work: I click to delete and it freezes when there is more than 2 items. I'm posting the function "show" that is how I'm doing to save and show things and the funcion "remove" that is the one I'm using to delete.
def show(self):
dia = self.comb2.get ()
mes = self.comb.get ()
ano = self.comb3.get ()
dat = ano + '-' + mes + '-' + dia
dat2 = dia + '-' + mes + '-' + ano
query = "SELECT * FROM Medicamentos WHERE Nome = ?"
result = c.execute (query, (self.Medic_E.get(),))
for self.r in result:
self.get_id = self.r[0]#ID
self.get_name = self.r[1]#Nome
medicamentos.append(self.Medic_E.get())
quantidade.append(int(self.Qtde_E.get()))
preco.append(float(self.Preco_E.get()))
comprador.append (self.Comprador_E.get())
id.append(self.get_id)
datas.append(dat)
total.append(float(self.Qtde_E.get())*float(self.Preco_E.get()))
self.x_index = 0
self.y_index = 40
self.x_counter = 0
for self.p in medicamentos:
self.nome = Label(self.right, text=str(medicamentos[self.x_counter]), font='arial 15 bold',
bg='lightblue')
self.nome.place (x=0, y=self.y_index)
geral.append (self.nome)
self.quant = Label(self.right, text=str(quantidade[self.x_counter]), font='arial 15 bold',
bg='lightblue')
self.quant.place (x=200, y=self.y_index)
geral.append (self.quant)
self.preco = Label(self.right, text='R$ %.2f' % (float(preco[self.x_counter])*float(quantidade[self.x_counter])), font='arial 15 bold',
bg='lightblue')
self.preco.place (x=380, y=self.y_index)
geral.append (self.preco)
self.datas = Label (self.right, text='%s' % (datas[self.x_counter]),
font='arial 15 bold', bg='lightblue')
self.datas.place (x=530, y=self.y_index)
geral.append (self.datas)
self.y_index += 30
self.x_counter += 1
self.total_1.configure(text='Total: R$ %.2f' % sum(total))
def remove(self):
tamanho = int(len(comprador))
if tamanho <= 1:
del (medicamentos[-1])
del (quantidade[-1])
del (preco[-1])
del (datas[-1])
del (total[-1])
self.datas.destroy()
self.preco.destroy()
self.quant.destroy()
self.nome.destroy()
self.Fornec_E.focus()
for a in geral:
a.destroy()
self.total_1.configure(text='Total: %.2f' % sum(total))
else:
del (comprador[-1])
del (geral[-1])
del (medicamentos[-1])
del (quantidade[-1])
del (preco[-1])
del (datas[-1])
del (total[-1])
self.datas.destroy()
self.preco.destroy()
self.quant.destroy()
self.nome.destroy()
self.Fornec_E.focus()
self.total_1.configure(text='Total: %.2f' % sum(total))
