October 24, 2026 · 18 min
Cleaning a messy spreadsheet file, the plain way
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One Small Script
A short letter every Sunday from my desk: one idea in Python, one small exercise and one thing about changing careers.
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Nov 1, 2026 · 13 min
Cleaning the same file, the short way
The same job as video 35, done with a small helper library in a few lines. Compare the two before you pick.
Oct 17, 2026 · 14 min
Reading a file line by line
Opening a file, looping over its lines and printing what you find. Needs video 33.