Incorrect index() section uses find()
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Assessment
- Difficulty
- 1/5
- Estimated time
- Under an hour
- Newbie friendliness
- 92/100
- Issue type
- Documentation
- Clarity
- Clearly specified
- Activity status
- Quiet
- Tech stack
- python
- Domain
- documentation
Research direction
Open 04_Day_Strings/day_4.py and locate the index() section. Compare it with the surrounding find() section, then change the two calls in the index() examples so they demonstrate index() and retain the shown outputs. Done means the section is labeled index() and no longer uses find(), while the earlier find() section remains unchanged.
Written by the indexing model from the issue text.
Description
Description
The index() section in 04_Day_Strings/day_4.py incorrectly demonstrates the find() method instead of the index() method.
Current content
# index(): Returns the index of substring
challenge = 'thirty days of python'
print(challenge.find('y')) # 5
print(challenge.find('th')) # 0
Why this is a problem
The section is labeled index(), but both examples use find():
challenge.find('y')
challenge.find('th')
This can be confusing for learners because find() and index() have similar behavior, but they are different string methods.
For example, when the substring is not found:
'hello'.find('x') # -1
'hello'.index('x') # ValueError
Suggested change
Replace the find() calls with index() calls:
# index(): Returns the index of substring
challenge = 'thirty days of python'
print(challenge.index('y')) # 5
print(challenge.index('th')) # 0
The existing find() section earlier in the file can remain unchanged.- Dominant language
- Python
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