Pandas version checks

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  • [X] 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

import pandas as pd
import numpy as np
result = pd.DataFrame()
result.loc[0, 0] = np.asarray([0])     # This assignment statement will raise an IndexError

Issue Description

  • This error occurs when I want to upgrade my pandas==1.1.5 to a higher version, including the newest one(pandas==1.5.2).
  • Cannot use result.loc[0, 0] = np.asarray([0]) to set a ndarray as the value of an empty dataframe
  • I try to figure out what's wrong with it by myself, but I am not familiar with pandas's internal. Maybe #42099 has changed the indexing behavior for a ndarray.
  • Finally, I am not sure whether it is a bug or not. 😂

Expected Behavior

  • The assignment statement will not raise an IndexError and set the value correctly and successfully.

Expected Output (When I use pandas==1.1.5):

...
>>> result.loc[0, 0] = np.asarray([0])
>>> print(result)
     0
0  0.0

Installed Versions

INSTALLED VERSIONS

commit : 8dab54d6573f7186ff0c3b6364d5e4dd635ff3e7 python : 3.8.11.final.0 python-bits : 64 OS : Darwin OS-release : 20.3.0 Version : Darwin Kernel Version 20.3.0: Thu Jan 21 00:07:06 PST 2021; root:xnu-7195.81.3~1/RELEASE_X86_64 machine : x86_64 processor : i386 byteorder : little LC_ALL : None LANG : None LOCALE : None.UTF-8

pandas : 1.5.2 numpy : 1.23.5 pytz : 2022.6 dateutil : 2.8.2 setuptools : 57.0.0 pip : 21.1.3 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : 1.0.2 psycopg2 : None jinja2 : 3.1.2 IPython : 8.4.0 pandas_datareader: None bs4 : None bottleneck : None brotli : None fastparquet : None fsspec : None gcsfs : None matplotlib : None numba : None numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pyreadstat : None pyxlsb : None s3fs : None scipy : None snappy : None sqlalchemy : None tables : None tabulate : 0.8.10 xarray : None xlrd : None xlwt : None zstandard : None tzdata : None

Comment From: LouisLU9911

Any update on this? #50065 seems to have made some progress. 😃