Description
Describe the bug, including details regarding any error messages, version, and platform.
This is a relatively straightforward problem in which a thread that is continuing to run during shutdown tries to register an atexit handler.
This only happens if the pandas library is installed causing the associated shims to be used. This happens regardless of whether or not pandas is in-use by the application.
The problem can be avoided by making sure to join all theads before main exits, but this is not generally required by python so should be considered a bug.
Context to reproduce:
requirements.txt
pandas==2.0.0
pyarrow==11.0.0
main.py
import threading
import pyarrow
def use_pyarrow() -> None:
table = pyarrow.table({"a": [1, 2, 3]})
def main() -> None:
t = threading.Thread(target=use_pyarrow, args=())
t.start()
if __name__ == "__main__":
main()
Run:
$ python main.py
Traceback (most recent call last):
File "pyarrow/pandas-shim.pxi", line 100, in pyarrow.lib._PandasAPIShim._check_import
File "pyarrow/pandas-shim.pxi", line 48, in pyarrow.lib._PandasAPIShim._import_pandas
File "/home/jleibs/pyarrow-repro/venv/lib/python3.10/site-packages/pyarrow/pandas_compat.py", line 24, in <module>
import concurrent.futures.thread # noqa
File "/usr/lib/python3.10/concurrent/futures/thread.py", line 37, in <module>
threading._register_atexit(_python_exit)
File "/usr/lib/python3.10/threading.py", line 1504, in _register_atexit
raise RuntimeError("can't register atexit after shutdown")
RuntimeError: can't register atexit after shutdown
Exception ignored in: 'pyarrow.lib._PandasAPIShim._have_pandas_internal'
Traceback (most recent call last):
File "pyarrow/pandas-shim.pxi", line 100, in pyarrow.lib._PandasAPIShim._check_import
File "pyarrow/pandas-shim.pxi", line 48, in pyarrow.lib._PandasAPIShim._import_pandas
File "/home/jleibs/pyarrow-repro/venv/lib/python3.10/site-packages/pyarrow/pandas_compat.py", line 24, in <module>
import concurrent.futures.thread # noqa
File "/usr/lib/python3.10/concurrent/futures/thread.py", line 37, in <module>
threading._register_atexit(_python_exit)
File "/usr/lib/python3.10/threading.py", line 1504, in _register_atexit
raise RuntimeError("can't register atexit after shutdown")
RuntimeError: can't register atexit after shutdown
Component(s)
Python