Hi all,
I'm seeing a strange issue when importing pyarrow on the intake CI. I get an
exception saying
AttributeError: type object 'pyarrow.lib.Message' has no attribute
'__reduce_cython__'
The full traceback is:
______________________________ test_arrow_import
_______________________________
def test_arrow_import():
> import pyarrow
intake/cli/server/tests/test_server.py:32:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _
../../../virtualenv/python3.7.1/lib/python3.7/site-packages/pyarrow/__init__.py:49:
in <module>
from pyarrow.lib import cpu_count, set_cpu_count
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _
> ???
E AttributeError: type object 'pyarrow.lib.Message' has no attribute
'__reduce_cython__'
pyarrow/ipc.pxi:21: AttributeError
_________________ TestServerV1Source.test_read_part_compressed
_________________
I'm unable to reproduce this locally, and was wondering if anyone else has
seen something similar.
Pyarrow was installed using pip / a wheel (
https://travis-ci.org/intake/intake/jobs/648523104#L311).
A common cause of this error message is building with too old of a Cython.
While checking this, I noticed
that some of the files are generated with Cython 0.29.8, while others were
generated with 0.29.14.
I have no idea if this is a problem in general of if it's causing this
specific issue.
```
_hdfs.cpp:1:/* Generated by Cython 0.29.14 */
include/arrow/python/pyarrow_lib.h:20:/* Generated by Cython 0.29.8 */
include/arrow/python/pyarrow_api.h:21:/* Generated by Cython 0.29.8 */
_plasma.cpp:1:/* Generated by Cython 0.29.14 */
_fs.cpp:1:/* Generated by Cython 0.29.14 */
lib_api.h:1:/* Generated by Cython 0.29.14 */
gandiva.cpp:1:/* Generated by Cython 0.29.14 */
_json.cpp:1:/* Generated by Cython 0.29.14 */
_parquet.cpp:1:/* Generated by Cython 0.29.14 */
_csv.cpp:1:/* Generated by Cython 0.29.14 */
_compute.cpp:1:/* Generated by Cython 0.29.14 */
_dataset.cpp:1:/* Generated by Cython 0.29.14 */
_flight.cpp:1:/* Generated by Cython 0.29.14 */
lib.cpp:1:/* Generated by Cython 0.29.14 */
```
See the https://travis-ci.org/intake/intake/jobs/648523104 for the full log.
Thanks for any pointers!
