class user:
    def __init__(self , age):
        if age >=0:
            self._age = age
        else:
            self._age = 0

    @property
    def age(self):
        return self._age

    @age.setter
    def age(self , value):
        if value >=0:
            self._age = value
        else:
            raise ValueError('invalid value')

me = user(20)
print(me.age)
me.age = 40
print(me.age)

class person:
    def __init__(self,name , family):
        self.name = name
        self.family = family

    @property
    def fullname(self):
        return f'{self.name} {self.family}'

class user(person):
    def __init__(self , name , family , age):
        super().__init__(name , family)
        self.age = age


me=user('matin' , 'kalamipour' , 20)
print(me.fullname)

class person:
    def __init__(self , name):
        self.name = name
        print(f'{self.name} person class')
class user:
    def __init__(self, name):
        self.name =name
        print(f'{self.name} user class')
class admin(person , user):
    def __init__(self , name):
        super().__init__(name)
        print(f'{self.name} admin class')

me = admin('matin') # => result = matin person class   , matin admin class

def fibonacciGenerator(n):
    a, b = 0, 1
    for _ in range(n):
        yield a
        a, b = b, a + b

for num in fibonacciGenerator(10):
    print(num)

def consumer():
    while True:
        received = yield
        print(f"Received: {received}")

def producer(consumer_coroutine):
    consumer = consumer_coroutine
    next(consumer)  # Advance to the yield keyword
    n = 0
    while True:
        n += 1
        print(f"Producing: {n}")
        consumer.send(n)
        if n == 5:
            break

consumer_cor = consumer()
producer(consumer_cor)