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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 main branch of pandas.
In [4]: pd.DataFrame({'a': [[1, 2], [3, 4]]}, dtype=pd.ArrowDtype(pa.list_(pa.int64()))).explode('a') Out[4]: a 0 1 0 2 1 3 1 4 In [5]: pd.DataFrame({'a': [[1, 2], [3, 4]]}, dtype=pd.ArrowDtype(pa.large_list(pa.int64()))).explode('a') Out[5]: a 0 [1 2] 1 [3 4]
For list_, it explodes correctly, but for large_list, it's a no-op
list_
large_list
a 0 1 0 2 1 3 1 4
commit : 57fd502 python : 3.10.12 python-bits : 64 OS : Linux OS-release : 5.15.167.4-microsoft-standard-WSL2 Version : #1 SMP Tue Nov 5 00:21:55 UTC 2024 machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : C.UTF-8 LOCALE : en_US.UTF-8
pandas : 3.0.0.dev0+1979.g57fd50221e numpy : 1.26.4 dateutil : 2.9.0.post0 pip : 25.0.1 Cython : 3.0.12 sphinx : 8.1.3 IPython : 8.33.0 adbc-driver-postgresql: None adbc-driver-sqlite : None bs4 : 4.13.3 blosc : None bottleneck : 1.4.2 fastparquet : 2024.11.0 fsspec : 2025.2.0 html5lib : 1.1 hypothesis : 6.127.5 gcsfs : 2025.2.0 jinja2 : 3.1.5 lxml.etree : 5.3.1 matplotlib : 3.10.1 numba : 0.61.0 numexpr : 2.10.2 odfpy : None openpyxl : 3.1.5 psycopg2 : 2.9.10 pymysql : 1.4.6 pyarrow : 19.0.1 pyreadstat : 1.2.8 pytest : 8.3.5 python-calamine : None pytz : 2025.1 pyxlsb : 1.0.10 s3fs : 2025.2.0 scipy : 1.15.2 sqlalchemy : 2.0.38 tables : 3.10.1 tabulate : 0.9.0 xarray : 2024.9.0 xlrd : 2.0.1 xlsxwriter : 3.2.2 zstandard : 0.23.0 tzdata : 2025.1 qtpy : None pyqt5 : None
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Pandas version checks
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 main branch of pandas.
Reproducible Example
Issue Description
For
list_
, it explodes correctly, but forlarge_list
, it's a no-opExpected Behavior
Installed Versions
INSTALLED VERSIONS
commit : 57fd502
python : 3.10.12
python-bits : 64
OS : Linux
OS-release : 5.15.167.4-microsoft-standard-WSL2
Version : #1 SMP Tue Nov 5 00:21:55 UTC 2024
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL : None
LANG : C.UTF-8
LOCALE : en_US.UTF-8
pandas : 3.0.0.dev0+1979.g57fd50221e
numpy : 1.26.4
dateutil : 2.9.0.post0
pip : 25.0.1
Cython : 3.0.12
sphinx : 8.1.3
IPython : 8.33.0
adbc-driver-postgresql: None
adbc-driver-sqlite : None
bs4 : 4.13.3
blosc : None
bottleneck : 1.4.2
fastparquet : 2024.11.0
fsspec : 2025.2.0
html5lib : 1.1
hypothesis : 6.127.5
gcsfs : 2025.2.0
jinja2 : 3.1.5
lxml.etree : 5.3.1
matplotlib : 3.10.1
numba : 0.61.0
numexpr : 2.10.2
odfpy : None
openpyxl : 3.1.5
psycopg2 : 2.9.10
pymysql : 1.4.6
pyarrow : 19.0.1
pyreadstat : 1.2.8
pytest : 8.3.5
python-calamine : None
pytz : 2025.1
pyxlsb : 1.0.10
s3fs : 2025.2.0
scipy : 1.15.2
sqlalchemy : 2.0.38
tables : 3.10.1
tabulate : 0.9.0
xarray : 2024.9.0
xlrd : 2.0.1
xlsxwriter : 3.2.2
zstandard : 0.23.0
tzdata : 2025.1
qtpy : None
pyqt5 : None
The text was updated successfully, but these errors were encountered: