Debugging mindset in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the error message when an exception occurs.

Intro to Computing

try:
    result = 10 / 0
except ZeroDivisionError as [1]:
    print([1])

Drag options to blanks, or click blank then click option'

Ae

Berror

Cexception

Derr

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name not matching the print statement.

Forgetting to use 'as' keyword.

In Python, the common variable name to catch an exception is e. This variable holds the error message.

2fill in blank

medium

Complete the code to check if a number is positive and print a message.

Intro to Computing

number = -5
if number [1] 0:
    print("Positive number")
else:
    print("Not positive")

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A>=

B<

C==

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' causing wrong output.

Using '==' which only checks equality.

The condition number > 0 checks if the number is positive.

3fill in blank

hard

Fix the error in the code to correctly access the first element of the list.

Intro to Computing

my_list = [10, 20, 30]
first_element = my_list[1]

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A(0)

B[0]

C{0}

D<0>

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses which call a function.

Using curly braces which define sets or dictionaries.

In Python, list elements are accessed using square brackets [] with the index inside.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps words to their lengths only if length is greater than 3.

Intro to Computing

{word: [1] for word in words if [2]

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Alen(word)

Bword

Clen(word) > 3

Dword > 3

Attempts:

3 left

💡 Hint

Common Mistakes

Using the word itself as the value instead of its length.

Comparing the word string directly to a number.

The dictionary comprehension maps each word to its length using len(word). The condition len(word) > 3 filters words longer than 3 characters.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase words to their lengths if length is greater than 2.

Intro to Computing

{ [1]: [2] for word in words if [3] }

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Aword.upper()

Blen(word)

Clen(word) > 2

Dword.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using word.lower() instead of uppercase.

Not filtering words by length correctly.

The comprehension maps the uppercase version of each word (word.upper()) to its length (len(word)) only if the length is greater than 2 (len(word) > 2).