String slicing behavior in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get the first three characters of the string.

Python

text = "hello"
slice = text[[1]]
print(slice)

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

A0:3

B1:4

C3:5

D2:5

Attempts:

3 left

💡 Hint

Common Mistakes

Using 1:4 instead of 0:3 to get the first three characters.

Forgetting that the end index is not included in slicing.

To get the first three characters, we slice from index 0 up to (but not including) 3.

2fill in blank

medium

Complete the code to get the last two characters of the string.

Python

text = "world"
slice = text[[1]]
print(slice)

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

A-3:-1

B3:5

C2:4

D-2:

Attempts:

3 left

💡 Hint

Common Mistakes

Using 3:5 works but is less flexible for strings of different lengths.

Using -3:-1 misses the last character.

Using negative indices, -2: means from the second last character to the end.

3fill in blank

hard

Fix the error in the code to reverse the string using slicing.

Python

text = "python"
reversed_text = text[[1]]
print(reversed_text)

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

A::-1

B1::-1

C::-2

D1:0:-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using 1::-1 only reverses part of the string.

Using ::-2 skips characters and does not fully reverse.

The slice ::-1 reverses the string by stepping backwards one character at a time.

4fill in blank

hard

Fill both blanks to get every second character from index 1 to 6.

Python

text = "abcdefghij"
slice = text[[1]:[2]:2]
print(slice)

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

A1

B6

C5

D7

Attempts:

3 left

💡 Hint

Common Mistakes

Using 1:5 misses the character at index 5.

Using 1:7 includes an extra character beyond index 6.

Start at index 1 and go up to (but not including) index 6, stepping by 2 to get every second character.

5fill in blank

hard

Fill all three blanks to extract characters from index 2 to 8 skipping every 3rd character.

Python

text = "abcdefghijklm"
slice = text[[1]:[2]:[3]]
print(slice)

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

A2

B8

C3

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Using step 5 skips too many characters.

Using stop index 5 cuts the slice too short.

Start at index 2, go up to (not including) 8, stepping by 3 to skip every 3rd character.