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Index subclasses do not check parameters #19348

toobaz opened this Issue Jan 22, 2018 · 3 comments


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5 participants

toobaz commented Jan 22, 2018

Code Sample, a copy-pastable example if possible

In [2]: pd.CategoricalIndex([1,2,3], asdasdsa=None)
Out[2]: CategoricalIndex([1, 2, 3], categories=[1, 2, 3], ordered=False, dtype='category')

In [3]: pd.PeriodIndex(['2012'], freq='Y', asdsadsa=None)
Out[3]: PeriodIndex(['2012'], dtype='period[A-DEC]', freq='A-DEC')

In [4]: pd.DatetimeIndex(['2012-02-02'], asdsadsa=None)
Out[4]: DatetimeIndex(['2012-02-02'], dtype='datetime64[ns]', freq=None)

In [5]: pd.MultiIndex([[]], [[]], asdsadsa=None)

Problem description

Compare to

In [6]: pd.Categorical([1,2,3], asdadsads=None)
TypeError                                 Traceback (most recent call last)
<ipython-input-6-cbc1bd28e752> in <module>()
----> 1 pd.Categorical([1,2,3], asdadsads=None)

TypeError: __init__() got an unexpected keyword argument 'asdadsads'

In [7]: pd.Int64Index([1,2,3], asdadsa=None)
TypeError                                 Traceback (most recent call last)
<ipython-input-7-7395c56977ea> in <module>()
----> 1 pd.Int64Index([1,2,3], asdadsa=None)

TypeError: __new__() got an unexpected keyword argument 'asdadsa'

In [8]: pd.Series([1,2,3], asdasda=None)
TypeError                                 Traceback (most recent call last)
<ipython-input-3-abfdb9dbe6f7> in <module>()
----> 1 pd.Series([1,2,3], asdasda=None)

TypeError: __init__() got an unexpected keyword argument 'asdasda'

Related to #19168

Expected Output


Output of pd.show_versions()


commit: c271d4d
python-bits: 64
OS: Linux
OS-release: 4.9.0-5-amd64
machine: x86_64
byteorder: little
LC_ALL: None

pandas: 0.23.0.dev0+121.gc271d4dd0
pytest: 3.2.3
pip: 9.0.1
setuptools: 36.7.0
Cython: 0.25.2
numpy: 1.12.1
scipy: 0.19.0
pyarrow: None
xarray: None
IPython: 6.2.1
sphinx: 1.5.6
patsy: 0.4.1
dateutil: 2.6.1
pytz: 2017.2
blosc: None
bottleneck: 1.2.0dev
tables: 3.3.0
numexpr: 2.6.1
feather: 0.3.1
matplotlib: 2.0.0
openpyxl: 2.3.0
xlrd: 1.0.0
xlwt: 1.3.0
xlsxwriter: 0.9.6
lxml: 4.1.1
bs4: 4.5.3
html5lib: 0.999999999
sqlalchemy: 1.0.15
pymysql: None
psycopg2: None
jinja2: 2.10
s3fs: None
fastparquet: None
pandas_gbq: None
pandas_datareader: 0.2.1

@chris-b1 chris-b1 added this to the Next Major Release milestone Jan 23, 2018


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cr458 commented Jan 23, 2018

I could have a look at this if needed?


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toobaz commented Jan 30, 2018

( @cr458 I guess it would be great)


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gilbertoolimpio commented Feb 12, 2018

A newbie here! Would like to help! @cr458 Can I help you?

@jreback jreback modified the milestones: Next Major Release, 0.23.0 Mar 7, 2018

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