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feat: add DataFrame.to_pandas_batches() to download large DataFrame objects#136
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…n DataFrame construction
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| """ | ||
| if self.index_columns: | ||
| df.set_index(list(self.index_columns), inplace=True) | ||
| df.index.names = self.index.names # type: ignore |
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Just curious what's the error here?
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bigframes/core/blocks.py:434: error: Incompatible types in assignment (expression has type "Sequence[Hashable]", variable has type "list[str]") [assignment]
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Even though list[str] is a sequence of hashable objects, I think maybe type covariance can't kick in. I'll try with some casts.
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Oh, I had it opposite. pandas says "names" is list[str], but actually I don't think that's true.
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Filed pandas-dev/pandas-stubs#804 and commented with an explanation.
…python-bigquery-dataframes into b280662868-to_pandas_batches
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…e` objects (#136) Builds on https://togithub.com/googleapis/python-bigquery-dataframes/pull/132 Towards internal issue 280662868 🦕
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Builds on #132
Towards internal issue 280662868
🦕