New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

BUG: IntervalIndex.get_loc fails when there is only one entry #20921

imre-kerr opened this Issue May 2, 2018 · 1 comment


None yet
3 participants

imre-kerr commented May 2, 2018

Code Sample, a copy-pastable example if possible

>>> import pandas as pd
>>> pd.IntervalIndex.from_tuples([(1,100)]).get_loc(50)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/imre/code/pandas/pandas/core/indexes/", line 1049, in get_loc
    raise KeyError(original_key)
KeyError: 50

Problem description

50 is contained in the interval (1, 100), so this should not raise KeyError.

Expected Output


Output of pd.show_versions()


commit: c4da79b
python-bits: 64
OS: Linux
OS-release: 4.13.0-39-generic
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None

pandas: 0.23.0.dev0+824.gc4da79b5b
pytest: None
pip: 10.0.1
setuptools: 39.1.0
Cython: 0.28.2
numpy: 1.14.3
scipy: None
pyarrow: None
xarray: None
IPython: None
sphinx: None
patsy: None
dateutil: 2.7.2
pytz: 2018.4
blosc: None
bottleneck: None
tables: None
numexpr: None
feather: None
matplotlib: None
openpyxl: None
xlrd: None
xlwt: None
xlsxwriter: None
lxml: None
bs4: None
html5lib: None
sqlalchemy: None
pymysql: None
psycopg2: None
jinja2: None
s3fs: None
fastparquet: None
pandas_gbq: None
pandas_datareader: None


This comment has been minimized.


jschendel commented May 2, 2018

xref #17284 (comment)

Not exactly a dupe of that issue, but the same fix will probably resolve both of these.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment