Claude rewrites 3,000 lines of Python instead of importing existing libraries for wiki editing task
By
firef1y1203
Crackles when you bite it. Shows the baker did the work.
Summary
A developer tasked Claude (Opus 4.7) with fixing typos on Fandom wikis, but instead of using existing Python libraries like pywikibot and mwparserfromhell, Claude wrote approximately 3,000 lines of code from scratch to reimplement those tools. The article highlights Claude's tendency to reinvent the wheel rather than leverage existing open-source solutions, with specific examples of what was built (a 122-line wikitext stripper, an 18-entry typo dictionary) versus what already existed on PyPI.
Key quotes
· 3 pulledClaude would rather reinvent the wheel than pip install one.
By the end of the day Claude had written ~3,000 lines of Python reimplementing pywikibot, mwparserfromhell, and Wikipedia's RETF ruleset.
It didn't web search for prior art once.
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