Python 3.4.1.6 LAB: The basics of lists

 3.4.1.6 LAB: The basics of lists

The basics of lists

If you're taking PCAP - Programming Essentials In Python , you may have encountered this question 3.4.1.6 LAB: The basics of lists.

Objectives

Familiarize the student with:

using basic instructions related to lists;

creating and modifying lists.

Scenario

There once was a hat. The hat contained no rabbit, but a list of five numbers: 1, 2, 3, 4, and 5.

Your task is to:

write a line of code that prompts the user to replace the middle number in the list with an integer number entered by the user (Step 1)

write a line of code that removes the last element from the list (Step 2)

write a line of code that prints the length of the existing list (Step 3).

Ready for this challenge?

Solution Code

hat_list = [1, 2, 3, 4, 5]  # This is an existing list of numbers hidden in the hat.

# Step 1: write a line of code that prompts the user

# to replace the middle number with an integer number entered by the user.

user_number = int(input("Please Enter an integer: "))

hat_list[2] = user_number

# Step 2: write a line of code that removes the last element from the list.

del hat_list[-1]

# Step 3: write a line of code that prints the length of the existing list.

print(f"The length of the list is: {len(hat_list)}")

print(hat_list)

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