Alberto Torres created ARROW-14569:
--------------------------------------
Summary: Support for pandas Categoricals with Intervals
Key: ARROW-14569
URL: https://issues.apache.org/jira/browse/ARROW-14569
Project: Apache Arrow
Issue Type: New Feature
Components: Python
Affects Versions: 6.0.0
Reporter: Alberto Torres
Trying to write a pandas categorical created from `pd.cut` fails with the
following error:
```
df_test = pd.DataFrame(\{"cat": pd.cut([1, 2, 3, 4, 5], [2, 4])})
df_test.to_parquet("test.parquet")
```
```
File "pyarrow/error.pxi", line 120, in pyarrow.lib.check_status
pyarrow.lib.ArrowNotImplementedError: Unsupported cast from
dictionary<values=extension<pandas.interval<ArrowIntervalType>>, indices=int8,
ordered=1> to extension<pandas.interval<ArrowIntervalType>> (no available cast
function for target type)
```
The problems seems to be the interval dtype. Specifing the `labels` keyword
solved the problem.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
