AlenkaF commented on issue #31031:
URL: https://github.com/apache/arrow/issues/31031#issuecomment-4054555862
This has been fixed in the meantime:
```python
In [1]: import pandas as pd
...: import pyarrow as pa
...: df = pd.DataFrame(index=pd.interval_range(start=0, end=3))
In [2]: df
Out[2]:
Empty DataFrame
Columns: []
Index: [(0, 1], (1, 2], (2, 3]]
In [3]: df.index
...:
Out[3]: IntervalIndex([(0, 1], (1, 2], (2, 3]], dtype='interval[int64,
right]')
In [4]: table = pa.table(df)
...: table.to_pandas().index
Out[4]: IntervalIndex([(0, 1], (1, 2], (2, 3]], dtype='interval[int64,
right]')
In [5]: pd.__version__
Out[5]: '3.0.0'
In [6]: pa.__version__
Out[6]: '20.0.0.dev1428+ga82edf90c.d20260312'
```
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