Question 1

How do you define a class in Python?

Accepted Answer

To define a class in Python, use the `class` keyword followed by the name and a colon, then add methods and attributes inside—like `class MyClass:`. It’s how you create blueprints for objects, and you can include an `__init__` method to set up initial values. Object-oriented programming made easy!

Question 2

What is a property in Python?

Accepted Answer

A property in Python lets you control access to class attributes using getter, setter, and deleter methods—like `@property`—turning method calls into attribute-like syntax. It’s a clean way to encapsulate data while keeping code intuitive. Great for managed attributes!

Question 3

What is a `defaultdict` in Python?

Accepted Answer

A `defaultdict` from `collections` is a dictionary that provides a default value for missing keys—like `defaultdict(int)` starts at 0—so you don’t get KeyErrors. It’s awesome for counting or grouping without explicit checks. Saves time and code!

Question 4

What is the `all()` function in Python?

Accepted Answer

The `all()` function in Python returns True if every item in an iterable is True—like `all([True, True])` is True, but `all([True, False])` is False. It’s great for validating that all conditions hold, short-circuiting on the first False. Handy for checks!

Question 5

How do you perform string formatting in Python?

Accepted Answer

Python offers several string formatting options: the `%` operator (old-school), `.format()` for more control, and f-strings (`f'Hello {name}'`) for readability—introduced in 3.6. F-strings are the modern favorite because they’re concise and fast. Pick based on your needs!

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