fix: nameless column to_frame bug for pandas 3.0#17371
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This pull request updates the to_frame method in series.py to handle missing or NaN column names more robustly, assigning 0 as the column name to align with Pandas behavior. The reviewer identified a potential runtime ValueError when provided_name is a tuple (e.g., a MultiIndex name), as pandas.isna would return an array with ambiguous truth value. A code suggestion was provided to wrap the name in a list to safely evaluate it.
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GarrettWu
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Jun 4, 2026
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Fixes #<519726816> 🦕