raulcd opened a new pull request, #12816:
URL: https://github.com/apache/arrow/pull/12816
This PR fixes ARROW-16025 (Calling nonexistent method of
pyarrow.orc.ORCWriter causes segfault).
The segmentation fault can be reproduced with the test:
```python
def test_wrong_usage_orc_writer(tempdir):
from pyarrow import orc
path = str(tempdir / 'test.orc')
with orc.ORCWriter(path) as writer:
with pytest.raises(AttributeError):
writer.test()
```
The issue was that closing `ORCFileWriter` without actually writing was
trying to close a null writer (`writer_->close();`) causing the segmentation
fault.
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