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BUG: String methods has no method "isascii()" #59091

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@ujex256

Description

@ujex256

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  • I have confirmed this bug exists on the main branch of pandas.

Reproducible Example

import pandas as pd
series = pd.Series(["a", "b", "c", "あ", ""])

series.str.isalnum()
"""
0    True
1    True
2    True
3    True
4    False
dtype: bool
"""

series.str.isascii()
# Traceback (most recent call last):
#   File "<stdin>", line 1, in <module>
# AttributeError: 'StringMethods' object has no attribute 'isascii'

Issue Description

pd.Series.str does not support isascii() metod.

Expected Behavior

The code shown above would look like this.

series.str.isascii()
"""
0    True
1    True
2    True
3    False
4    True
dtype: bool
"""

Installed Versions

INSTALLED VERSIONS

commit : d9cdd2e
python : 3.11.7.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 : ja_JP.UTF-8
LOCALE : Japanese_Japan.932

pandas : 2.2.2
numpy : 2.0.0
pytz : 2024.1
dateutil : 2.9.0.post0
setuptools : 69.5.1
pip : 24.1
Cython : None
pytest : None
hypothesis : None
sphinx : None
blosc : None
feather : None
xlsxwriter : None
lxml.etree : 5.2.2
html5lib : 1.1
pymysql : None
psycopg2 : None
jinja2 : None
IPython : 8.25.0
pandas_datareader : None
adbc-driver-postgresql: None
adbc-driver-sqlite : None
bs4 : 4.12.3
bottleneck : None
dataframe-api-compat : None
fastparquet : None
fsspec : None
gcsfs : None
matplotlib : None
numba : None
numexpr : None
odfpy : None
openpyxl : None
pandas_gbq : None
pyarrow : None
pyreadstat : None
python-calamine : None
pyxlsb : None
s3fs : None
scipy : None
sqlalchemy : None
tables : None
tabulate : None
xarray : None
xlrd : None
zstandard : None
tzdata : 2024.1
qtpy : None
pyqt5 : None

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