Python · OOP: Classes & Inheritance

At runtime you only have an attribute's name as a string. How do you read its value safely, and how do you just test whether it exists?

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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?

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