Skip to content

BUG: mod and divmod raise NotImplementedError with pyarrow types #56693

Closed
@rohanjain101

Description

@rohanjain101

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

>>> a = pd.Series([-7], dtype="int64[pyarrow]")
>>> a % 3
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "D:\pd_22_env\Lib\site-packages\pandas\core\ops\common.py", line 76, in new_method
    return method(self, other)
           ^^^^^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\arraylike.py", line 226, in __mod__
    return self._arith_method(other, operator.mod)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\series.py", line 5995, in _arith_method
    return base.IndexOpsMixin._arith_method(self, other, op)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\base.py", line 1382, in _arith_method
    result = ops.arithmetic_op(lvalues, rvalues, op)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\ops\array_ops.py", line 273, in arithmetic_op
    res_values = op(left, right)
                 ^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\ops\common.py", line 76, in new_method
    return method(self, other)
           ^^^^^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\arraylike.py", line 226, in __mod__
    return self._arith_method(other, operator.mod)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\arrays\arrow\array.py", line 757, in _arith_method
    return self._evaluate_op_method(other, op, ARROW_ARITHMETIC_FUNCS)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\pd_22_env\Lib\site-packages\pandas\core\arrays\arrow\array.py", line 743, in _evaluate_op_method
    raise NotImplementedError(f"{op.__name__} not implemented.")
NotImplementedError: mod not implemented.
>>>

Issue Description

A NotImplementedError is raised.

Expected Behavior

Behavior with numpy types:

>>> a = pd.Series([-7])
>>> a % 3
0    2
dtype: int64
>>>

Installed Versions

INSTALLED VERSIONS

commit : d4c8d82
python : 3.11.4.final.0
python-bits : 64
OS : Windows
OS-release : 10
Version : 10.0.22631
machine : AMD64
processor : Intel64 Family 6 Model 151 Stepping 2, GenuineIntel
byteorder : little
LC_ALL : None
LANG : None
LOCALE : English_United States.1252

pandas : 2.2.0rc0
numpy : 1.26.2
pytz : 2023.3.post1
dateutil : 2.8.2
setuptools : 69.0.2
pip : 23.3.1
Cython : None
pytest : 7.0.1
hypothesis : None
sphinx : 4.2.0
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : None
jinja2 : 3.1.2
IPython : 8.19.0
pandas_datareader : None
adbc-driver-postgresql: None
adbc-driver-sqlite : None
bs4 : 4.12.2
bottleneck : None
dataframe-api-compat : None
fastparquet : None
fsspec : None
gcsfs : None
matplotlib : 3.8.2
numba : None
numexpr : None
odfpy : None
openpyxl : None
pandas_gbq : None
pyarrow : 14.0.0
pyreadstat : None
python-calamine : None
pyxlsb : None
s3fs : None
scipy : 1.11.4
sqlalchemy : None
tables : None
tabulate : 0.9.0
xarray : None
xlrd : None
zstandard : None
tzdata : 2023.3
qtpy : None
pyqt5 : None

Metadata

Metadata

Assignees

No one assigned

    Labels

    BugNeeds TriageIssue that has not been reviewed by a pandas team member

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions