load_csv: skip blank lines, surface line number on row-length and key-column errors#49

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HrachShah wants to merge 2 commits into

simonw:mainfrom

HrachShah:fix/empty-trailing-line-and-mismatched-row-length

Commits on Jun 15, 2026

raise a clear ValueError for empty CSV input in load_csv — when a user runs csv-diff against an empty file, csv.reader returns no rows and the previous code let StopIteration bubble out of next(fp)…
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Commits on Jul 1, 2026

load_csv: skip blank lines, surface line number on row-length and key-column errors
Zo Bot
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