Description
Code Sample, a copy-pastable example if possible
from pandas import MultiIndex
key = ('a', 7)
idx = MultiIndex(levels=[['a'], [0, 7], [1]],
codes=[[0, 0], [1, 0], [0, 0]],
names=['x', 'y', 'z'],
sortorder=0)
idx.get_loc(key)Problem description
Executing the above code results in
---------------------------------------------------------------------------
KeyError Traceback (most recent call last)
<ipython-input-19-26c5d4d0888a> in <module>
----> 1 idx.get_loc(key)
~/soft/miniconda3/envs/junk/lib/python3.7/site-packages/pandas/core/indexes/multi.py in get_loc(self, key, method)
2696
2697 if start == stop:
-> 2698 raise KeyError(key)
2699
2700 if not follow_key:
KeyError: ('a', 1, 2)Note that the exception disappears if you do any of the following:
- change
sortordertoNone - change the codes of level 1 to
[0, 1] - change the values of level 1 to
[0, 7] - completely remove level 2
Expected Output
I don't think there should be any exception here since the way I created the index appears to be valid, and the key is definitely in there.
Output of pd.show_versions()
INSTALLED VERSIONS
commit : None
python : 3.7.1.final.0
python-bits : 64
OS : Linux
OS-release : 5.3.0-23-generic
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL : en_US.UTF-8
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
pandas : 0.25.3
numpy : 1.15.4
pytz : 2018.9
dateutil : 2.7.5
pip : 18.1
setuptools : 40.6.3
Cython : None
pytest : None
hypothesis : None
sphinx : None
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : None
jinja2 : 2.10
IPython : 7.2.0
pandas_datareader: None
bs4 : None
bottleneck : None
fastparquet : None
gcsfs : None
lxml.etree : None
matplotlib : 3.0.2
numexpr : None
odfpy : None
openpyxl : None
pandas_gbq : None
pyarrow : None
pytables : None
s3fs : None
scipy : None
sqlalchemy : None
tables : None
xarray : None
xlrd : None
xlwt : None
xlsxwriter : None