Exercise 8-11 Solution Python Crash Course Chapter 8 : Functions

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📘 Python Crash Course – Chapter 8: Functions – Exercise 8-11 Solution

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

📝 Exercise 8-11

Task:
Start with your work from Exercise 8-10 . Call the function make_great() with a copy of the list of magicians’ names .
Because the original list will be unchanged, return the new list and store it in a separate list .
Call show_magicians() with each list to show that you have one list of the origi nal names and one list with the Great added to each magician’s name

✅ Solution Code:


magicians = ["David Copperfield", "Harry Houdini", "Penn & Teller", "Dynamo", "Criss Angel"]
copy_magicians = magicians[:]


def show_magicians(magicians_list):
    """Print the names of the magicians in the list."""
    for names in magicians_list:
        print(names)
def make_great(magicians_list):
    """Modify the list of magicians by adding 'the Great' to each name."""
    for i in range(len(magicians_list)):
        magicians_list[i] = f"{magicians_list[i]} the Great Magician"
    return magicians_list

make_great(copy_magicians)

print("\nOriginal Magicians:")
show_magicians(magicians)

print("-----------------------------------------------------------")

print("Modified Magicians:")
show_magicians(copy_magicians)

🧠 Code Explanation:

  1. Create the original list:

    The variable magicians is assigned a list containing the names of famous magicians, such as ["David Copperfield", "Harry Houdini", "Penn & Teller", "Dynamo", "Criss Angel"].

  2. Create a copy of the list:

    The variable copy_magicians is assigned a copy of the magicians list using slicing (magicians[:]). This ensures that changes made to copy_magicians do not affect the original magicians list.

  3. Define the show_magicians function:

    This function accepts a list of magician names as a parameter and iterates through the list using a for loop. Each name in the list is displayed to confirm the current state of the list.

  4. Define the make_great function:

    This function modifies a list of magician names by appending the phrase 'the Great Magician' to each name. Here's how it works:

    • A for loop iterates through the list using the range() function to access each index.
    • Each name in the list is updated by concatenating the original name with the phrase 'the Great Magician'.
    • The modified list is returned to confirm the changes.
  5. Modify the copied list:

    The make_great function is called with copy_magicians as an argument. This modifies the copied list while leaving the original magicians list unchanged.

  6. Display both lists:

    The show_magicians function is called twice:

    • Once with the original magicians list to display the unmodified names.
    • Once with the modified copy_magicians list to display the updated names with 'the Great Magician' added.

🔍 Output:


Original Magicians:
David Copperfield
Harry Houdini
Penn & Teller
Dynamo
Criss Angel
-----------------------------------------------------------
Modified Magicians:
David Copperfield the Great Magician
Harry Houdini the Great Magician
Penn & Teller the Great Magician
Dynamo the Great Magician
Criss Angel the Great Magician

📚 Related Exercises from Chapter 8:

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