Exercise 3-9 Solution Python Crash Course Chapter 3: Introducing Lists

 

📘 Python Crash Course – Chapter 3: Introducing Lists – Exercise 3-9 Solution

Welcome to another solution from Python Crash Course by Eric Matthes.

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📝 Exercise 3-9

Task: Working with one of the programs from Exercises 3-4 through 3-7 , use len() to print a message indicating the number of people you are inviting to dinner

✅ Solution Code:

# we use exercise 3.4

guest = ["Iron man" , "Captain" , "Hulk"]

# Total Person
total_guest = len(guest)
print(f"Total Invited Guest : {total_guest}")

print(f'Hello {guest[0]} Thanks for attending My Party')
print(f'Hello {guest[1]} Thanks for attending My Party')
print(f'Hello {guest[2]} Thanks for attending My Party')

🧠 Code Explanation:

This Python code demonstrates how to calculate the number of guests invited to a dinner party using the len() function. Here's how it works:

1. Create a guest list:

   The variable guest is assigned a list containing the names of the guests: ["Iron man", "Captain", "Hulk"].

2. Calculate the total number of guests:

   The len() function is used to calculate the number of elements in the guest list. The result is stored in the variable total_guest.

3. Print the total number of guests:

   The print() function is used with an f-string to display a message indicating the total number of guests invited.

4. Send personalized invitations:

   The print() function is used with f-strings to send personalized invitations to each guest in the list.

🔍 Output:

Total Invited Guest : 3
Hello Iron man Thanks for attending My Party
Hello Captain Thanks for attending My Party
Hello Hulk Thanks for attending My Party

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📚 Related Exercises from Chapter 3:

• ➤ Exercise 3-1 -> Names
• ➤ Exercise 3-2 -> Greetings
• ➤ Exercise 3-3 -> Your Own List
• ➤ Exercise 3-4 -> Guest List
• ➤ Exercise 3-5 -> Changing Guest List
• ➤ Exercise 3-6 -> More Guests
• ➤ Exercise 3-7 -> Shrinking Guest List
• ➤ Exercise 3-8 -> Seeing the World
• ➤ Exercise 3-9 -> Dinner Guests
• ➤ Exercise 3-10 -> Every Function

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