Exercise 6-4 Solution Python Crash Course Chapter 6: Dictionaries

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📘 Python Crash Course – Chapter 6: Dictionaries – Exercise 6-4 Solution

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

📝 Exercise 6-4

Task:
Now that you know how to loop through a dictionary, clean up the code from Exercise 6-3 by replacing your series of print statements with a loop that runs through the dictionary’s keys and values .
When you’re sure that your loop works, add five more Python terms to your glossary . When you run your program again, these new words and meanings should automatically be included in the output

✅ Solution Code:


glossary = {
    "Indexing" : "The Location of an element",
    "Variables" : "A name given to a value.",
    "loop" : "A block of code that repeats.",
    "list" : "A collection of items in a specific order.",
    "dictionary" : "An unordered collection of key-value pairs."
}


glossary["Inserted word 1"] = "Inserted meaning 1"
glossary["Inserted word 2"] = "Inserted meaning 2"
glossary["Inserted word 3"] = "Inserted meaning 3"
glossary["Inserted word 4"] = "Inserted meaning 4"
glossary["Inserted word 5"] = "Inserted meaning 5"

for word,meaning in glossary.items():
    print(f"Word : {word} \nMeaning : {meaning} \n")

🧠 Code Explanation:

This Python code demonstrates how to loop through a dictionary to display its keys and values, and how to dynamically add new entries to the dictionary. Here's how it works:

  1. Create a glossary dictionary:

    The variable glossary is assigned a dictionary where the keys are programming terms, and the values are their corresponding meanings. For example:

    • "Indexing": "The Location of an element"
    • "Variables": "A name given to a value."
    • "loop": "A block of code that repeats."
    • "list": "A collection of items in a specific order."
    • "dictionary": "An unordered collection of key-value pairs."
  2. Add new terms to the glossary:

    Five new terms and their meanings are added to the dictionary using assignment statements. For example:

    • glossary["Inserted word 1"] = "Inserted meaning 1"
    • glossary["Inserted word 2"] = "Inserted meaning 2"
    • ...and so on for five new terms.
  3. Iterate through the glossary:

    The items() method is used to retrieve all key-value pairs from the dictionary. A for loop iterates through these pairs, where word represents the key (programming term) and meaning represents the value (definition).

  4. Display the glossary:

    For each key-value pair, the program displays the word and its meaning in a neatly formatted output. A newline character (\n) is used to separate each word-meaning pair for better readability.

This code demonstrates how to dynamically update a dictionary and use loops to display its contents in a clean and organized manner.

🔍 Output:


Word : Indexing 
Meaning : The Location of an element 

Word : Variables 
Meaning : A name given to a value. 

Word : loop 
Meaning : A block of code that repeats. 

Word : list 
Meaning : A collection of items in a specific order.  

Word : dictionary 
Meaning : An unordered collection of key-value pairs. 

Word : Inserted word 1 
Meaning : Inserted meaning 1 

Word : Inserted word 2
Meaning : Inserted meaning 2

Word : Inserted word 3
Meaning : Inserted meaning 3

Word : Inserted word 4
Meaning : Inserted meaning 4

Word : Inserted word 5
Meaning : Inserted meaning 5

📚 Related Exercises from Chapter 6:

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