Build a Planet Class - Build a Planet Class

Python
1

Tell us what’s happening:

I don’t understand the problem in the 18th question, could anybody please guide me.

Your code so far

class Planet:
    def __init__(self, name, planet_type, star):
        
        self.name = name
        self.planet_type = planet_type
        self.star = star

        if not (isinstance(name, str) and isinstance(planet_type, str) and isinstance(star, str)):
            raise TypeError("name, planet type, and star must be strings")

        if name == "":
            raise ValueError("name, planet_type, and star must be non-empty strings")
        if planet_type == "":
            raise ValueError("name, planet_type, and star must be non-empty strings")    
        if star == "":
            raise ValueError("name, planet_type, and star must be non-empty strings")       
        
    def orbit(self):
        return f'{self.name} is orbiting around {self.star}...'

    def __str__(self):
        return f'Planet: {self.name} | Type: {self.planet_type} | Star: {self.star}'
    
planet_1 = Planet("Mars", "Big", "Sun")
planet_2 = Planet("Pluto", "Not so big", "Sun")
planet_3 = Planet("Uranus", "Fairly big", "Sun")

print(str(planet_1))
print(str(planet_2))
print(str(planet_3))

print(planet_1.orbit())
print(planet_2.orbit())
print(planet_3.orbit())

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Challenge Information:

Build a Planet Class - Build a Planet Class

2

Remove str() method from your statements that are printing planet objects in the last lines of your code.

3

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