Description
Pandas version checks
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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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I have confirmed this bug exists on the main branch of pandas.
Reproducible Example
Make a file t.py with
import io
import pandas as pd
pd.read_csv(io.StringIO('a'), ' ')Issue Description
Running this on main gives
$ python t.py
sys:1: FutureWarning: In a future version of pandas all arguments of read_csv except for the argument 'filepath_or_buffer' will be keyword-only.
Expected Behavior
I would have expected
$ python t.py
t.py:4: FutureWarning: In a future version of pandas all arguments of read_csv except for the argument 'filepath_or_buffer' will be keyword-only.
cc @twoertwein in case you know what this might be due to
I noticed this in #47035 - find_stacklevel seems to be working correctly, I think it's the test which is wrong. Currently the test passes, although it should fail.
Installed Versions
INSTALLED VERSIONS
commit : f491c65
python : 3.9.2.final.0
python-bits : 64
OS : Linux
OS-release : 5.10.106-15290-g6e9d70c8a9b4
Version : #1 SMP PREEMPT Wed May 11 19:17:10 PDT 2022
machine : aarch64
processor :
byteorder : little
LC_ALL : None
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
pandas : 1.5.0.dev0+959.gf491c651bf
numpy : 1.22.4
pytz : 2022.1
dateutil : 2.8.2
setuptools : 62.1.0
pip : 22.0.4
Cython : 0.29.30
pytest : 7.1.2
hypothesis : 6.47.1
sphinx : None
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : None
jinja2 : None
IPython : None
pandas_datareader: None
bs4 : None
bottleneck : None
brotli : None
fastparquet : None
fsspec : None
gcsfs : None
matplotlib : None
numba : None
numexpr : 2.8.1
odfpy : None
openpyxl : None
pandas_gbq : None
pyarrow : None
pyreadstat : None
pyxlsb : None
s3fs : None
scipy : None
snappy : None
sqlalchemy : None
tables : 3.7.0
tabulate : None
xarray : None
xlrd : None
xlwt : None
zstandard : None