KnowCardPython · OOP: Classes & Inheritance
What's the difference between isinstance() and issubclass(), and what do their arguments expect?
Answer locked. Get the free KnowCard app to reveal it — plus spaced-repetition review so it actually sticks.
More in OOP: Classes & Inheritance
In a class, what must the first parameter of every (instance) method be, and what is passed into it?
What happens when you run this?
```
class Account:
def show():
print("hi")
Account().show()
```
Where should a class's instance attributes be created, and with what syntax?
Is __init__ a constructor in the strict sense, and what does it return?
What does this print?
```
class C:
def __init__(self):
print("init")
x = C()
```
How does Python clean up an instance at the end of its life — is there a guaranteed destructor?
Start learning today
Free to start — download the app or use it in your browser.