Python Lists Overview

Play an AI-generated podcast conversation about this lesson

What is the purpose of the comma in a list declaration?

It is used to define a function in Python.
It is used to separate elements in a list. (correct)
It is used to end a statement in Python.
It is used to assign values to variables.

What is the result of the code list1[1:3] = list2 in Python?

It will raise an error because list1 is immutable.
It will replace the elements at index 1 and 2 of list1 with the elements of list2. (correct)
It will concatenate list1 and list2.
It will remove the elements at index 1 and 2 from list1.

What is the difference between a list and a tuple in Python?

A list is mutable, while a tuple is immutable. (correct)
A list is immutable, while a tuple is mutable.
A list can only hold integers, while a tuple can hold any type.
A list can only hold strings, while a tuple can hold any type.

What is the output of the code print(type(list1))?

(C) Signup and view all the answers

What is the characteristic of a list in Python?

It is ordered and can be accessed via an index. (A) Signup and view all the answers

What is the purpose of square brackets in a list declaration?

They are used to enclose the elements of a list. (C) Signup and view all the answers

What is a major difference between a Python list and an array in C, C++, or Java?

Python lists may have objects of different data types. (C) Signup and view all the answers

How can you access a list item in Python?

Using the square brackets with the index. (A) Signup and view all the answers

What is the index of the last item in a Python list?

Length-1 (A) Signup and view all the answers

What is the purpose of the '+' operator when used with Python lists?

To concatenate two lists. (C) Signup and view all the answers

What is true about a Python list?

It is an ordered collection of items. (D) Signup and view all the answers

What is the purpose of the '*' operator when used with Python lists?

To concatenate multiple copies of a list. (C) Signup and view all the answers

Which of the following best describes the process of list indexing in Python?

Python allows both positive and negative indices to access elements in a list. (C) Signup and view all the answers

What will be the output of the following code: list_var = ['a', 'b', 'c', 'd', 'e']; print(list_var[1:4])?

['b', 'c', 'd'] (C) Signup and view all the answers

In Python, what is the result of 'emp = [ 'John', 102, 'USA']'?

A list containing three elements: 'John', 102, 'USA' (D) Signup and view all the answers

What is the output of the following code in Python: print([1, 2, 3]*2)?

[1, 2, 3, 1, 2, 3] (B) Signup and view all the answers

Considering the code snippet provided, why is 'a!=b' printed as output?

The elements inside 'a' and 'b' are different, even though they appear the same. (C) Signup and view all the answers

When indexing into a Python list, at which index position would the first element of the list be stored?

Index 0 (C) Signup and view all the answers