BUG: improve error message for duplicate columns in pd.melt (GH61475)#65189

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mriganshu16 wants to merge 2 commits intopandas-dev:mainfrom

mriganshu16:fix/melt-duplicate-columns-error

Commits on Apr 12, 2026

BUG: improve error message for duplicate columns in pd.melt (GH61475)

Mriganshu Bora
authored and
Mriganshu Bora
committed
BUG: distinguish id_vars vs value_vars in missing column KeyError for pd.melt
mriganshubora
committed