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Avoid FutureWarning that can arise from index dtype inference #9575

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Avoid FutureWarning that can arise from index dtype inference #9575

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4 changes: 2 additions & 2 deletions dask/dataframe/groupby.py
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Original file line number Diff line number Diff line change
Expand Up @@ -524,7 +524,7 @@ def _mul_cols(df, cols):
# Fix index in a groupby().apply() context
# https://github.com/dask/dask/issues/8137
# https://github.com/pandas-dev/pandas/issues/43568
_df.index = [0] * len(_df)
_df.index = pd.Index([0] * len(_df), dtype="int")
return _df


Expand Down Expand Up @@ -634,7 +634,7 @@ def _drop_duplicates_reindex(df):
# https://github.com/dask/dask/issues/8137
# https://github.com/pandas-dev/pandas/issues/43568
result = df.drop_duplicates()
result.index = [0] * len(result)
result.index = pd.Index([0] * len(result), dtype="int")
return result


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