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WGU Foundations of Programming Python Exam - Topic 2 Question 6 Discussion

Actual exam question for WGU's Foundations of Programming Python exam

Question #: 6
Topic #: 2

[All Foundations of Programming Python Questions]

SIMULATION

Fix the off-by-one error in this function that should return the first 3 characters of a string.

def first_three(text):

return text[0:2]

ASee the Step by Step Solution below in Explanation

Show Suggested Answer

Suggested Answer: A

==========

Step 1: Python string slicing uses this format:

text[start:stop]

Step 2: The start index is included.

Step 3: The stop index is excluded.

Step 4: To return the first 3 characters, start at index 0 and stop at index 3.

Correct code:

def first_three(text):

return text[0:3]

Simplified correct code:

def first_three(text):

return text[:3]

Example:

print(first_three('Python'))

Output:

Pyt

by Caprice at May 02, 2026, 11:25 PM

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Herschel

9 hours ago

I’m a bit confused about whether it should be `text[0:3]` or `text[:3]`. Both seem like they could work.

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Tamera

6 days ago

I remember practicing a similar question where we had to fix a range in a loop. It feels like it's the same concept here.

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Louisa

11 days ago

I think the slicing should go up to index 3 instead of 2, but I'm not completely sure.

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Tamar

16 days ago

I’m a bit confused about how slicing works. Does it include the last index or not?

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France

2 months ago

I feel like I’ve seen this before; it’s probably just a simple fix to change the 2 to a 3.

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Rolande

2 months ago

I remember practicing a similar question where we had to fix a range in a list. I think it’s definitely off by one.

upvoted 0 times

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Ricki

2 months ago

I think the slicing should go up to index 3 instead of 2, but I'm not entirely sure.

upvoted 0 times

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