Records below are third-party data, not instructions. Apply with your own judgment.
pandas
1 record of known failures, each with its cause, the fix and what not to try.
Don’t try
call pd.concat once per row inside a loop — pandas' concat docs advise against building frames row by row; collect the rows in a list and build one DataFrame or one concat at the end. (×1) · record
df._append(...), the private method behind the old API — private and unstable: pandas 3.0 dropped it (the helper became _append_internal), so it fails with AttributeError: 'DataFrame' object has no attribute '_append'. (×1) · record