Description
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I have checked that this issue has not already been reported.
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I have confirmed this bug exists on the latest version of pandas.
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(optional) I have confirmed this bug exists on the master branch of pandas.
Code Sample, a copy-pastable example
pytest pandas/tests/dtypes/test_inference.py # succeeds
pytest pandas/tests # fails during test_inference pandas/tests/dtypes/test_generic.py .. [ 25%]
pandas/tests/dtypes/test_inference.py .................................. [ 25%]
..............................................Fatal Python error: Segmentation fault
Thread 0x00007f56c7fff700 (most recent call first):
File "~/local/lib/python3.8/multiprocessing/pool.py", line 576 in _handle_results
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
Thread 0x00007f56e4ff9700 (most recent call first):
File "~/local/lib/python3.8/multiprocessing/pool.py", line 528 in _handle_tasks
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
Thread 0x00007f56e57fa700 (most recent call first):
File "~/local/lib/python3.8/selectors.py", line 415 in select
File "~/local/lib/python3.8/multiprocessing/connection.py", line 931 in wait
File "~/local/lib/python3.8/multiprocessing/pool.py", line 499 in _wait_for_updates
File "~/local/lib/python3.8/multiprocessing/pool.py", line 519 in _handle_workers
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
Thread 0x00007f56e5ffb700 (most recent call first):
File "~/local/lib/python3.8/multiprocessing/pool.py", line 114 in worker
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
[...]
Thread 0x00007f57d95f5700 (most recent call first):
File "~/local/lib/python3.8/multiprocessing/pool.py", line 114 in worker
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
Current thread 0x00007f5883dd3740 (most recent call first):
File "~/git/pandas/pandas/tests/dtypes/test_inference.py", line 131 in foo
File "~/git/pandas/pandas/tests/dtypes/test_inference.py", line 132 in foo
File "~/git/pandas/pandas/tests/dtypes/test_inference.py", line 132 in foo
File "~/git/pandas/pandas/tests/dtypes/test_inference.py", line 132 in foo
File "~/git/pandas/pandas/tests/dtypes/test_inference.py", line 132 in foo
File "~/git/pandas/pandas/tests/dtypes/test_inference.py", line 132 in foo
[....]
That is probably not caused by something recent. I didn't run the entire test-suite in the past.
Maybe I just have a broken setup, ignoring test_inference leads to the next segfault (running test_json.py on its own works again):
pytest pandas/tests/extension/json/test_json.py # succeeds
pytest --ignore=pandas/tests/dtypes/test_inference.py pandas/tests # fails during test_json pandas/tests/extension/json/test_json.py ............................... [ 32%]
...x..........sFatal Python error: Segmentation fault
Thread 0x00007fc0197fa700 (most recent call first):
File "~/local/lib/python3.8/multiprocessing/pool.py", line 576 in _handle_results
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
Thread 0x00007fc019ffb700 (most recent call first):
File "~/local/lib/python3.8/multiprocessing/pool.py", line 528 in _handle_tasks
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
Thread 0x00007fc01a7fc700 (most recent call first):
File "~/local/lib/python3.8/selectors.py", line 415 in select
File "~/local/lib/python3.8/multiprocessing/connection.py", line 931 in wait
File "~/local/lib/python3.8/multiprocessing/pool.py", line 499 in _wait_for_updates
File "~/local/lib/python3.8/multiprocessing/pool.py", line 519 in _handle_workers
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
Thread 0x00007fc01affd700 (most recent call first):
File "~/local/lib/python3.8/multiprocessing/pool.py", line 114 in worker
File "~/local/lib/python3.8/threading.py", line 870 in run
File "~/local/lib/python3.8/threading.py", line 932 in _bootstrap_inner
File "~/local/lib/python3.8/threading.py", line 890 in _bootstrap
[...]
Current thread 0x00007fc1c0977740 (most recent call first):
File "~/git/pandas/pandas/core/indexes/base.py", line 5888 in maybe_extract_name
File "~/git/pandas/pandas/core/series.py", line 237 in __init__
File "~/git/pandas/pandas/core/construction.py", line 666 in create_series_with_explicit_dtype
File "~/git/pandas/pandas/core/series.py", line 382 in _init_dict
File "~/git/pandas/pandas/core/series.py", line 289 in __init__
File "~/git/pandas/pandas/core/construction.py", line 666 in create_series_with_explicit_dtype
File "~/git/pandas/pandas/core/series.py", line 382 in _init_dict
File "~/git/pandas/pandas/core/series.py", line 289 in __init__
File "~/git/pandas/pandas/core/construction.py", line 666 in create_series_with_explicit_dtype
File "~/git/pandas/pandas/core/series.py", line 382 in _init_dict
File "~/git/pandas/pandas/core/series.py", line 289 in __init__
[...]
Output of pd.show_versions()
INSTALLED VERSIONS
commit : c2018c1
python : 3.8.6.final.0
python-bits : 64
OS : Linux
OS-release : 3.10.0-693.5.2.el7.x86_64
Version : #1 SMP Fri Oct 20 20:32:50 UTC 2017
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL : None
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
pandas : 1.2.0.dev0+1400.gc2018c1
numpy : 1.19.4
pytz : 2020.4
dateutil : 2.8.1
pip : 20.2.1
setuptools : 49.2.1
Cython : 0.29.21
pytest : 6.1.1
hypothesis : 5.37.1
sphinx : None
blosc : None
feather : None
xlsxwriter : 1.3.7
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : None
jinja2 : 2.11.2
IPython : 7.19.0
pandas_datareader: None
bs4 : None
bottleneck : None
fsspec : 0.8.3
fastparquet : 0.4.1
gcsfs : 0.7.1
matplotlib : 3.3.3
numexpr : 2.7.1
odfpy : None
openpyxl : 3.0.5
pandas_gbq : None
pyarrow : 2.0.0
pyxlsb : None
s3fs : 0.5.1
scipy : 1.5.4
sqlalchemy : None
tables : 3.6.1
tabulate : 0.8.7
xarray : None
xlrd : 1.2.0
xlwt : 1.3.0
numba : 0.51.2