I'm starting at Python and I was going pretty well until I get to classes part. Well, I'm trying to create a ChatBot, and in the main class the function Python `pensar()` returns `iniciar` so the function `resp()` can append it to self.recente list. It occurs as it has to be, but when the loop gets to `pensar()` again, it doesn't get the self.recente[-1]. Hope someone can help me.

**Here's the class code:**

```
class IA():
def __init__(self, nome):
    self.nome = nome
    self.recente = []

def ouvir(self):
    iniciar = input('»')
    iniciar = iniciar.upper()
    iniciar = iniciar.replace('O ', '')
    return iniciar

def pensar(self, iniciar):
    if iniciar == 'OI':
        return 'Ola, qual seu nome?'
    if self.recente[-1] == 'Olá, qual seu nome?':
        a = self.pegar_nome()
        b = self.resp_nome(b)

def pegar_nome(self):
    pass

def resp_nome(self, iniciar):
    pass

def resp(self, iniciar):
    self.recente.append(iniciar)
    print(iniciar)

```

**And here's the main.py one:**

```
    from Ia import IA

    tchau = ['TCHAU', 'XAU', 'ATE LOGO', 'ATÉ LOGO', 'ATE MAIS', 'ATÉ MAIS']

    while True:
        a = IA('Joao')
        b = a.ouvir()

        if b in tchau:
            print('Até mais')
            break

        c = a.pensar(b)
        a.resp(c)   

```