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Python Floats and Objects

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Questions and Answers

What is true about floats in Python?

They are primitive data types and not objects

They are objects and have state and functionality (correct)

They are immutable and cannot be changed

They can only be used for integer arithmetic

How do you access an object's attributes in Python?

Using the assignment operator

Using parentheses

Using square brackets

Using dot notation (correct)

What is an immutable object in Python?

An object that can be changed after creation

An object that can only be used once

An object that cannot be changed after creation (correct)

An object that can be used for any data type

What is the purpose of assigning a label to an object in Python?

To remind us what the object is used for (C) Signup and view all the answers

What is the assignment operator in Python?

A symbol for assigning a label to an object (A) Signup and view all the answers

What is a variable in Python?

A label referencing an object in memory (A) Signup and view all the answers

What is a key characteristic of Python entities?

They have state and methods (D) Signup and view all the answers

What is an example of a real-world thing that might be represented by a Python entity?

A brand of car (A) Signup and view all the answers

What is an example of functionality that an integer object has in Python?

All of the above (D) Signup and view all the answers

What is the result of the expression `(10).add(100)` in Python?

110 (A) Signup and view all the answers

What is a key difference between Python entities and simple variables?

Entities can have methods (A) Signup and view all the answers

What happens to the object an identifier references when the identifier is reassigned?

The identifier now references a new object (D) Signup and view all the answers

What is the order of operations when assigning a value to an identifier?

RHS is evaluated, then LHS (C) Signup and view all the answers

What is the naming convention for standard variables in Python?

Snake case (D) Signup and view all the answers

What happens when we append an element to a list?

The list's state changes, but it's still the same object (A) Signup and view all the answers

What is a characteristic of identifiers in Python?

They are case-sensitive (D) Signup and view all the answers

What is a consequence of reassigning a variable?

The variable now references a new object (D) Signup and view all the answers