KeyError error message could be less confusing #21557
Labels
Error Reporting
Incorrect or improved errors from pandas
Indexing
Related to indexing on series/frames, not to indexes themselves
Milestone
Code Sample, a copy-pastable example if possible
Problem description
The way in which we catch exceptions is uninteresting to the user. The sequence of two exceptions suggests to the user that there is a bug in the code, or unexpected exception, which is not the case; so this error message is confusing.
The fix is trivial.
Expected Output
Output of
pd.show_versions()
INSTALLED VERSIONS
commit: b36b451
python: 3.5.3.final.0
python-bits: 64
OS: Linux
OS-release: 4.9.0-6-amd64
machine: x86_64
processor:
byteorder: little
LC_ALL: None
LANG: it_IT.UTF-8
LOCALE: it_IT.UTF-8
pandas: 0.24.0.dev0+132.gb36b451a7
pytest: 3.5.0
pip: 9.0.1
setuptools: 39.2.0
Cython: 0.25.2
numpy: 1.14.3
scipy: 0.19.0
pyarrow: None
xarray: None
IPython: 6.2.1
sphinx: 1.5.6
patsy: 0.5.0
dateutil: 2.7.3
pytz: 2018.4
blosc: None
bottleneck: 1.2.0dev
tables: 3.3.0
numexpr: 2.6.1
feather: 0.3.1
matplotlib: 2.2.2.post1153+gff6786446
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
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