pre-commit failing on flake8 hook with undefined name 'EncodingWarning' error

[seanjedi]

description of problem

On VS Code, I am attempting to commit a staged change of src_pytest\config_init_.py; however, the pre-commit hook fails on flake8 with command ouput:

flake8...................................................................Failed
- hook id: flake8
- exit code: 1

testing/_py/test_local.py:18:45: F821 undefined name 'EncodingWarning'

Every other hook either passes or is skipped. I installed pre-commit and its hook on the pytest repo using

pip list output

cachetools                    5.3.1
certifi                       2022.12.7
cffi                          1.15.1
cfgv                          3.3.1
cftime                        1.6.2
chardet                       5.2.0
charset-normalizer            2.0.4
clean                         0.1.4
clean-text                    0.6.0
cleantext                     1.1.4
click                         8.0.4
click-plugins                 1.1.1
cligj                         0.7.2
cloudpickle                   2.0.0
clyent                        1.2.2
colorama                      0.4.6
colorcet                      3.0.1
comm                          0.1.2
conda                         23.3.1
conda-build                   3.23.3
conda-content-trust           0.1.3
conda-pack                    0.6.0
conda-package-handling        2.0.2
conda_package_streaming       0.7.0
conda-repo-cli                1.0.41
conda-token                   0.4.0
conda-verify                  3.4.2
constantly                    15.1.0
contourpy                     1.0.6
cookiecutter                  1.7.3
coverage                      6.5.0
cpplint                       1.6.1
cramjam                       2.6.2
cryptography                  39.0.1
cssselect                     1.1.0
cycler                        0.11.0
Cython                        0.29.32
cytoolz                       0.12.0
daal4py                       2023.0.2
dask                          2023.3.2
datashader                    0.14.4
datashape                     0.5.4
db-dtypes                     1.0.4
debugpy                       1.5.1
decorator                     5.1.1
defusedxml                    0.7.1
diff-match-patch              20200713
dill                          0.3.6
distlib                       0.3.7
distributed                   2023.3.2
Django                        4.2.2
docstring-to-markdown         0.11
docutils                      0.18.1
doit                          0.36.0
emoji                         1.7.0
entrypoints                   0.4
et-xmlfile                    1.1.0
exceptiongroup                1.0.4
execnet                       1.9.0
executing                     1.2.0
fastjsonschema                2.16.2
fastparquet                   2022.11.0
feedparser                    6.0.10
filelock                      3.12.2
findspark                     2.0.1
Fiona                         1.8.22
firebase                      3.0.1
flake8                        6.0.0
flake8-bugbear                22.7.1
Flask                         1.1.2
flatbuffers                   23.5.26
flit_core                     3.8.0
fonttools                     4.25.0
frozenlist                    1.3.3
fsspec                        2023.3.0
ftfy                          6.1.1
future                        0.18.3
gast                          0.4.0
gcsfs                         2021.11.0
gensim                        4.3.0
geographiclib                 2.0
geopandas                     0.12.1
geopy                         2.3.0
gitdb                         4.0.9
GitPython                     3.1.29
glob2                         0.7
gmpy2                         2.1.2
google-api-core               2.10.2
google-auth                   2.14.1
google-auth-oauthlib          0.7.1
google-cloud-bigquery         3.3.6
google-cloud-bigquery-storage 2.16.2
google-cloud-core             2.3.2
google-cloud-storage          2.6.0
google-crc32c                 1.5.0
google-pasta                  0.2.0
google-resumable-media        2.4.0
googleapis-common-protos      1.57.0
greenlet                      2.0.1
grpcio                        1.50.0
grpcio-status                 1.50.0
h5py                          3.7.0
HeapDict                      1.0.1
holoviews                     1.15.4
html5lib                      1.1
huggingface-hub               0.10.1
hvplot                        0.8.2
hyperlink                     21.0.0
hypothesis                    6.58.0
identify                      2.5.8
idna                          3.4
imagecodecs                   2021.8.26
imageio                       2.26.0
imagesize                     1.4.1
imbalanced-learn              0.10.1
importlib-metadata            6.0.0
importlib-resources           5.2.0
incremental                   21.3.0
inflection                    0.5.1
iniconfig                     1.1.1
intake                        0.6.8
intervaltree                  3.1.0
ipykernel                     6.19.2
ipython                       8.12.0
ipython-genutils              0.2.0
ipywidgets                    8.0.4
isort                         5.10.1
itemadapter                   0.3.0
itemloaders                   1.0.4
itsdangerous                  2.0.1
jaraco.classes                3.2.1
jdcal                         1.4.1
jedi                          0.18.1
jeepney                       0.7.1
jellyfish                     0.9.0
Jinja2                        3.0.0
jinja2-time                   0.2.0
jmespath                      0.10.0
joblib                        1.1.1
json5                         0.9.6
jsonpatch                     1.32
jsonpointer                   2.1
jsonschema                    4.17.3
jupyter                       1.0.0
jupyter_client                7.4.9
jupyter-console               6.6.3
jupyter_core                  5.3.0
jupyter-server                1.23.4
jupyterlab                    3.5.3
jupyterlab-pygments           0.1.2
jupyterlab-server             2.10.3
jupyterlab-widgets            3.0.5
jupyterlite                   0.1.0b12
keras                         2.13.1
keyring                       23.13.1
kiwisolver                    1.4.4
lazy-object-proxy             1.6.0
libarchive-c                  2.9
libclang                      16.0.6
llvmlite                      0.39.1
locket                        1.0.0
lxml                          4.9.1
lz4                           3.1.3
Markdown                      3.4.1
MarkupSafe                    2.1.1
matplotlib                    3.7.1
matplotlib-inline             0.1.6
mccabe                        0.7.0
meteostat                     1.6.5
mistune                       2.0.4
mkl-fft                       1.3.1
mkl-random                    1.2.2
mkl-service                   2.4.0
mock                          4.0.3
more-itertools                9.0.0
moto                          4.0.10
mpmath                        1.2.1
msgpack                       1.0.3
multidict                     6.0.2
multipledispatch              0.6.0
munch                         2.5.0
munkres                       1.1.4
mypy                          0.990
mypy-extensions               0.4.3
natsort                       8.2.0
navigator-updater             0.3.0
nbclassic                     0.5.4
nbclient                      0.5.13
nbconvert                     7.2.5
nbformat                      5.7.0
nbsphinx                      0.8.10
nest-asyncio                  1.5.6
networkx                      2.8.4
nltk                          3.7
nodeenv                       1.7.0
nose                          1.3.7
notebook                      6.5.3
notebook_shim                 0.2.2
numba                         0.56.4
numexpr                       2.8.4
numpy                         1.23.5
numpydoc                      1.5.0
nvidia-cublas-cu11            11.10.3.66
nvidia-cuda-nvrtc-cu11        11.7.99
nvidia-cuda-runtime-cu11      11.7.99
nvidia-cudnn-cu11             8.5.0.96
oauthlib                      3.2.2
odfpy                         1.4.1
olefile                       0.46
openpyxl                      3.0.10
opt-einsum                    3.3.0
ortools                       9.5.2237
packaging                     23.1
pandas-datareader             0.10.0
pandas-dev-flaker             0.5.0
pandas-gbq                    0.17.9
pandoc                        2.2
pandocfilters                 1.5.0
panel                         0.14.3
param                         1.12.3
parsel                        1.6.0
parso                         0.8.3
partd                         1.2.0
pathlib                       1.0.1
pathspec                      0.10.3
patsy                         0.5.3
pep8                          1.7.1
pexpect                       4.8.0
pickleshare                   0.7.5
Pillow                        9.4.0
pip                           23.0.1
pkginfo                       1.9.6
platformdirs                  3.10.0
plotly                        5.9.0
pluggy                        1.2.0
plumbum                       1.8.0
ply                           3.11
pooch                         1.4.0
poyo                          0.5.0
pre-commit                    2.20.0
prometheus-client             0.14.1
prompt-toolkit                3.0.36
Protego                       0.1.16
proto-plus                    1.22.1
protobuf                      4.21.9
psutil                        5.9.4
psycopg2                      2.9.5
ptyprocess                    0.7.0
pure-eval                     0.2.2
py                            1.11.0
py4j                          0.10.9.5
pyarrow                       9.0.0
pyasn1                        0.4.8
pyasn1-modules                0.2.8
pycodestyle                   2.10.0
pycosat                       0.6.4
pycparser                     2.21
pyct                          0.5.0
pycurl                        7.45.2
pydata-google-auth            1.4.0
pydata-sphinx-theme           0.10.1
PyDispatcher                  2.0.5
pydocstyle                    6.3.0
pyerfa                        2.0.0
pyflakes                      3.0.1
Pygments                      2.13.0
PyHamcrest                    2.0.2
PyJWT                         2.4.0
pylint                        2.16.2
pylint-venv                   2.3.0
pyls-spyder                   0.4.0
PyMySQL                       1.0.2
pyodbc                        4.0.34
pyOpenSSL                     23.0.0
pyparsing                     3.0.9
pyproj                        3.4.0
pyproject-api                 1.5.4
PyQt5-sip                     12.11.0
pyreadstat                    1.2.0
pyrsistent                    0.18.0
PySocks                       1.7.1
pyspark                       3.3.1
pytest                        7.2.0
pytest-asyncio                0.20.2
pytest-cov                    4.0.0
pytest-cython                 0.2.0
pytest-xdist                  3.0.2
python-dateutil               2.8.2
python-lsp-black              1.2.1
python-lsp-jsonrpc            1.0.0
python-lsp-server             1.7.1
python-slugify                5.0.2
python-snappy                 0.6.1
pytoolconfig                  1.2.5
pytz                          2022.7
pyupgrade                     3.2.2
pyviz-comms                   2.0.2
PyWavelets                    1.4.1
pyxdg                         0.27
pyxlsb                        1.0.10
PyYAML                        6.0
pyzmq                         23.2.0
QDarkStyle                    3.0.2
qstylizer                     0.2.2
QtAwesome                     1.2.2
qtconsole                     5.4.0
QtPy                          2.2.0
queuelib                      1.5.0
regex                         2022.7.9
requests                      2.28.1
requests-file                 1.5.1
requests-oauthlib             1.3.1
responses                     0.22.0
rope                          1.7.0
rsa                           4.9
Rtree                         1.0.1
ruamel.yaml                   0.17.21
ruamel.yaml.clib              0.2.6
ruamel-yaml-conda             0.17.21
s3fs                          2021.11.0
s3transfer                    0.6.0
scikit-image                  0.19.3
scikit-learn                  1.2.2
scikit-learn-intelex          20230228.214108
scipy                         1.10.1
Scrapy                        2.8.0
seaborn                       0.12.2
SecretStorage                 3.3.1
Send2Trash                    1.8.0
service-identity              18.1.0
setuptools                    65.6.3
sgmllib3k                     1.0.0
Shapely                       1.8.5.post1
sip                           6.6.2
six                           1.16.0
smart-open                    5.2.1
smmap                         5.0.0
sniffio                       1.2.0
snowballstemmer               2.2.0
snscrape                      0.5.0.20230114.dev31+gf329b69
sodapy                        2.2.0
sortedcollections             2.1.0
sortedcontainers              2.4.0
soupsieve                     2.4
spark                         0.2.1
Sphinx                        5.0.2
sphinx-copybutton             0.5.1
sphinx-panels                 0.6.0
sphinx-toggleprompt           0.2.0
sphinxcontrib-applehelp       1.0.2
sphinxcontrib-devhelp         1.0.2
sphinxcontrib-htmlhelp        2.0.0
sphinxcontrib-jsmath          1.0.1
sphinxcontrib-qthelp          1.0.3
sphinxcontrib-serializinghtml 1.1.5
spyder                        5.4.2
spyder-kernels                2.4.2
SQLAlchemy                    1.4.44
sqlparse                      0.4.4
stack-data                    0.6.1
statsmodels                   0.13.5
style                         1.1.0
sympy                         1.11.1
tables                        3.7.0
tabulate                      0.9.0
TBB                           0.2
tblib                         1.7.0
tenacity                      8.0.1
tensorboard                   2.13.0
tensorboard-data-server       0.7.1
tensorflow                    2.13.0
tensorflow-estimator          2.13.0
tensorflow-io-gcs-filesystem  0.33.0
termcolor                     2.3.0
terminado                     0.17.1
testpath                      0.6.0
text-unidecode                1.3
textdistance                  4.2.1
threadpoolctl                 2.2.0
three-merge                   0.1.1
tifffile                      2021.7.2
tinycss                       0.4
tinycss2                      1.2.1
tldextract                    3.2.0
tokenize-rt                   5.0.0
tokenizers                    0.11.4
toml                          0.10.2
tomli                         2.0.1
tomlkit                       0.11.1
toolz                         0.12.0
torch                         1.13.0
tornado                       6.2
tox                           4.10.0
tqdm                          4.65.0
traitlets                     5.7.1
transformers                  4.24.0
tweepy                        4.12.1
Twisted                       22.2.0
typed-ast                     1.4.3
types-PyMySQL                 1.0.19.1
types-python-dateutil         2.8.19.4
types-pytz                    2022.6.0.1
types-setuptools              65.6.0.0
types-toml                    0.10.8.1
typing_extensions             4.4.0
tzdata                        2022.6
ujson                         5.4.0
Unidecode                     1.2.0
update                        0.0.1
urllib3                       1.26.15
versioneer                    0.28
virtualenv                    20.24.3
w3lib                         1.21.0
watchdog                      2.1.6
wcwidth                       0.2.5
webencodings                  0.5.1
websocket-client              0.58.0
Werkzeug                      2.2.2
whatthepatch                  1.0.2
wheel                         0.38.4
widgetsnbextension            4.0.5
wrapt                         1.14.1
wurlitzer                     3.0.2
xarray                        2022.11.0
xlrd                          2.0.1
XlsxWriter                    3.0.3
xmltodict                     0.13.0
yapf                          0.31.0
yarl                          1.8.1
zict                          2.1.0
zipp                          3.11.0
zope.interface                5.4.0
zstandard                     0.19.0

pytest and operating system versions

pytest --version
pytest 7.1.2

Distributor ID: Ubuntu
Description:    Ubuntu 22.04.2 LTS
Release:        22.04
Codename:       jammy

minimal example

If I discard my changes and do pre-commit run --all-files, everything passes or is skipped except for:
Issue with mypy that can be found here: #11343
and

flake8...................................................................Failed
- hook id: flake8
- exit code: 1

testing/_py/test_local.py:18:45: F821 undefined name 'EncodingWarning'

[bluetech]

EncodingWarning was added in Python 3.10, so the error would trigger on older Python versions. It would be good to add a noqa: F821 comment on this line. Would you like to send a PR for this?

[seanjedi]

Sure I can work on this, will make this change soon

[seanjedi]

@bluetech Created a PR here: #11360

[seanjedi]

The PR above has been merged, and the issue is no longer present on the most recent commit on main.

(base) ➜  pytest-sean git:(main) pre-commit run --all-files
black....................................................................Passed
blacken-docs.............................................................Passed
trim trailing whitespace.................................................Passed
fix end of files.........................................................Passed
fix python encoding pragma...............................................Passed
check yaml...............................................................Passed
debug statements (python)................................................Passed
autoflake................................................................Passed
flake8...................................................................Passed
Reorder python imports...................................................Passed
pyupgrade................................................................Passed
setup-cfg-fmt............................................................Passed
type annotations not comments............................................Passed
mypy.....................................................................Passed
rst......................................................................Passed
changelog filenames..................................(no files to check)Skipped
py library is deprecated.................................................Passed
py.path usage is deprecated..............................................Passed