Description
-
I have checked that this issue has not already been reported.
-
I have confirmed this bug exists on the latest version of pandas.
-
I have confirmed this bug exists on the master branch of pandas.
Reproducible Example
from pandas.core.window.indexers import BaseIndexer
from typing import Union, Tuple, Optional
import numpy as np
import pandas as pd
class RollingFixedOffsetVariableWindowIndexer(BaseIndexer):
def get_window_bounds(self, num_values: int = 0, min_periods: Optional[int] = None, center: Optional[bool] = None,
closed: Optional[str] = None) -> Tuple[np.ndarray, np.ndarray]:
# Every hour
start = np.arange(0, num_values, 60 * 60)
# Every hour + day
end = start + 60 * 60 * 24
return start, end
ser = pd.Series(np.arange(100000), index=pd.date_range(start='2020', freq='1s', periods=100000))
idxr = RollingFixedOffsetVariableWindowIndexer(window_size=60 * 60 * 24)
out = ser.rolling(idxr, min_periods=10).mean()Issue Description
(Maybe related to #43267 ? Couldn't tell.)
I'm trying to create a custom BaseIndexer for a .rolling operation. The extraction of the window is quick and efficient, yet when I attempt to perform various operations on it I get the seg-fault error:
Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)
I have created an MWE for this behavior using a fixed-indexer (that carries the same name). The original indexer was supposed to produce a rolling-operation with overlaps, so the above indexer is similar in the sense that it creates a 1-day windows 1-hour apart for a one-second index.
Expected Behavior
Hmmm... Not to have a seg-fault error?
Installed Versions
INSTALLED VERSIONS
commit : 945c9ed
python : 3.8.9.final.0
python-bits : 64
OS : Linux
OS-release : 5.4.0-77-generic
Version : #86~18.04.1-Ubuntu SMP Fri Jun 18 01:23:22 UTC 2021
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL : None
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
pandas : 1.3.4
numpy : 1.18.5
pytz : 2018.3
dateutil : 2.8.1
pip : 21.1.3
setuptools : 57.4.0
Cython : None
pytest : 6.2.2
hypothesis : None
sphinx : 3.5.3
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : 0.999999999
pymysql : None
psycopg2 : None
jinja2 : 2.11.3
IPython : None
pandas_datareader: None
bs4 : 4.6.0
bottleneck : None
fsspec : 0.8.7
fastparquet : None
gcsfs : None
matplotlib : 3.1.3
numexpr : 2.7.3
odfpy : None
openpyxl : 3.0.7
pandas_gbq : None
pyarrow : None
pyxlsb : None
s3fs : None
scipy : 1.4.1
sqlalchemy : None
tables : 3.6.1
tabulate : 0.8.9
xarray : None
xlrd : 1.2.0
xlwt : None
numba : None
None
Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)