Pandas version checks

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Reproducible Example

import pandas
statafile = pandas.read_stata(statafilepath)
statafile["webphone"]
statafile["webphone"].round(2).astype(float)
round(statafile["webphone"],2).astype(float)

Issue Description

When rounding numbers that have been brought in from stata, rounding does not work as expected. The identical number imported from a postgres table does not have the same issue. You can see the issue in the image below:

Image

Expected Behavior

Rounding a float should round it.

Installed Versions

>>> pandas.show_versions() INSTALLED VERSIONS ------------------ commit : 2cc37625532045f4ac55b27176454bbbc9baf213 python : 3.12.1 python-bits : 64 OS : Windows OS-release : 11 Version : 10.0.26100 machine : AMD64 processor : Intel64 Family 6 Model 183 Stepping 1, GenuineIntel byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : English_Canada.1252 pandas : 2.3.0 numpy : 2.3.0 pytz : 2025.2 dateutil : 2.9.0.post0 pip : 23.2.1 Cython : None sphinx : None IPython : 9.3.0 adbc-driver-postgresql: None adbc-driver-sqlite : None bs4 : 4.13.4 blosc : None bottleneck : None dataframe-api-compat : None fastparquet : None fsspec : 2025.5.1 html5lib : None hypothesis : None gcsfs : None jinja2 : 3.1.6 lxml.etree : 5.4.0 matplotlib : 3.10.3 numba : None numexpr : None odfpy : None openpyxl : 3.1.5 pandas_gbq : None psycopg2 : 2.9.10 pymysql : None pyarrow : None pyreadstat : None pytest : None python-calamine : None pyxlsb : None s3fs : None scipy : 1.15.3 sqlalchemy : 2.0.41 tables : None tabulate : None xarray : None xlrd : None xlsxwriter : None zstandard : None tzdata : 2025.2 qtpy : None pyqt5 : None

Comment From: rhshadrach

Thanks for the report. In order to consider this issue, we need a reproducible example. If you take cstdata, write it as a CSV, and use pd.read_csv on this file, can you reproduce the behavior? If so, then you can post the plaintext of the data in the issue.

Alternatively, can you attach the stata file to the issue?

Please reduce it to a minimal example: only keep the rows / columns you need to demonstrate the issue.

Closing until a reproducer is provided - happy to reopen!

Comment From: CoreyBurger

Ok, minimal example attached. The DTA file is in a zip

MinRoundingExample.xlsx MinRoundingExample.csv MinRoundingExample.zip

To trigger these examples, the following code was used: Excelfile["webphone"] Excelfile["webphone"].round(3) statafile["webphone"] statafile["webphone"].round(3) CSVFile["webphone"] CSVFile["webphone"].round(3)

It produces the following results for me: Image

Comment From: CoreyBurger

For reference, all of these files were exported from a single Stata 18 instance running on Windows.