class Celsius:
    def __init__(self, temperature=0):
        print('initalising')
        self.temperature = temperature

    def __repr__(self):
        return(f'current temperature is {self.temperature} degrees C')

    def to_fahrenheit(self):
        return (self.temperature * 1.8) + 32

    def get_temperature(self):
        print("Getting value")
        return self._temperature

    def set_temperature(self, value):
        if value < -273:
            raise ValueError("Temperature below -273 is not possible")
        print("Setting value")
        self._temperature = value
        return value

    temperature = property(get_temperature, set_temperature)


# c = Celsius(20)
# print(Celsius(20).get_temperature)

# print(Celsius(20).set_temperature(25))
# Celsius(20).get_temperature()
c = Celsius()
print(c.to_fahrenheit())