DRY (Don't Repeat Yourself) in Software Engineering - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to follow the DRY principle by avoiding repeated print statements.

Software Engineering

def greet(name):
    print(f"Hello, {name}!")

# Instead of repeating print, call [1]

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

Agreet

Bprint

Chello

Drepeat

Attempts:

3 left

💡 Hint

Common Mistakes

Using print directly instead of calling the function.

Using a function like greet avoids repeating the print statement multiple times, following DRY.

2fill in blank

medium

Complete the sentence to explain the DRY principle.

Software Engineering

"DRY means you should avoid [1] code."

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

Arepeating

Bdeleting

Cwriting

Dcommenting

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'writing' which is too general.

DRY stands for "Don't Repeat Yourself," so it means avoiding repeating code.

3fill in blank

hard

Fix the error in the code to avoid repeating the calculation.

Software Engineering

def area(radius):
    return 3.14 * radius [1] 2

# Use the function instead of repeating the formula

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

A+

B*

C**

D//

Attempts:

3 left

💡 Hint

Common Mistakes

Using '*' which multiplies but is less clear than '**' for square.

The exponent operator ** correctly calculates radius squared, avoiding repeating the multiplication.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that avoids repeating the length calculation.

Software Engineering

lengths = {word: [1] for word in words if len(word) [2] 3}

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

Alen(word)

B>

C<

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'word' instead of 'len(word)' for the value.

Using len(word) avoids repeating length calculation, and > filters words longer than 3.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that avoids repeating keys and filters positive values.

Software Engineering

result = { [1]: [2] for [1], [2] in data if [2] [3] 0 }

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

Ak

Bv

C>

Ditem

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'item' which is not standard for keys or values.

Using k and v avoids repeating key and value names, and > filters positive values.