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Questions tagged [flake8]

Automatic syntax checker for Python, bundled with pycodestyle, pyflakes and mccabe.

Automatic syntax checker for Python programming language, bundled with pycodestyle, pyflakes, mccabe for easy installation and use.

410 questions
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How do I enable auto code formatting for flake8 in PyCharm

I use Tox to run unit tests, with a flake8 command that checks for code formatting errors. Each time I code in PyCharm, I run tox then realise I have a bunch of annoying formatting errors I have to back and manually fix. I would like PyCharm to…
Ryu S.
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5 answers

Using Pylint in Ipython (Jupyter-Notebook)

I want to run Pylint or any equivalent while using Jupyter-Notebook. Is there a way to install and run Pylint this way?
mccurcio
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23
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5 answers

flake8 not picking up config file

I have my flake8 config file in ~/.config/flake8 [flake8] max-line-length = 100 However when I run flake8 the config file is not picked up. I know that because i still get warnings over lines longer than 79 char. I'm on redhat, but the same happens…
evolution
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3 answers

Flake8 Not Recognizing built-in exception

I have a strict pre-commit hook set up with flake8, so I can't commit until its happy. This is normally a good thing, but it is causing some problems with what seems like no problem at all. I can't get Flake8 to recognize a…
Lily Mara
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1 answer

Flake8 Error code '#' supplied to 'ignore' option does not match '^[A-Z]{1,3}[0-9]{0,3}$'

I met this issue while running git push. $ flake8 --config setup.cfg Traceback (most recent call last): File "/usr/local/bin/flake8", line 8, in sys.exit(main()) File "/usr/local/lib/python3.8/site-packages/flake8/main/cli.py", line…
taichi_tiger
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3 answers

Exclude .env directory from flake8 tests?

Problem I'm getting thousands of flake8 errors stemming from my local .env. An example of some of the error messages: ./env/lib/python3.7/site-packages/pip/_vendor/pyparsing.py:3848:80: E501 line too long (85 > 79…
Toms Code
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0 answers

Which atom python linting packages are stable?

It seems that there are too many Python linting packages and I am wonder which one should we use. I suspect installing two will provide a confusing experience, if not even triggering weird bugs. python-autopep8 - 20+ linter-python-flaks -…
sorin
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1 answer

How to fix issues with E402?

We are trying to fix issues with PEP8 E402. Mostly our code is broken on: import os os.environ['LIB_CAN_THROW_ERROR_ON_IMPORT'] = 2 import lib os.environ['LIB_CAN_THROW_ERROR_ON_IMPORT'] = 0 # back - if sys.version_info[0] > 2: import…
aleskva
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2 answers

Specify per-file-ignores with pyproject.toml and flake8

I am using flake8 (with flakehell but that should not interfere) and keep its configuration in a pyproject.toml file. I want to add a per-file-ignores config but nothing works and there is no documentation on how it is supposed to be formatted in a…
Piotr Zakrzewski
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19
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3 answers

Python AutoPep8 formatting not working with max line length parameter

I noticed one strange thing that autopep8 autoformatting in VSCode doesn't work when we set "python.formatting.autopep8Args": [ "--line-length 119" ], But if this setting is in a default mode that is line length 79 then it works…
Mohit Kumar
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1 answer

How to avoid flake8's "F821 undefined name '_'" when _ has been installed by gettext?

Problem overview: In my project's main script, gettext installs the function _() that is used in other modules for translations (like in print(_('Something to translate'))). As stated by the doc: the _() function [is] installed in Python’s builtins…
zezollo
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6 answers

vim-flake8 is not working

I installed vim-flake8 by git cloning it on my Pathogen bundle folder as usual, but when I tried to run the plugin pressing F7 or using :call Flake8() in one Python file I receive the following message: Error detected while processing function…
Jonatas Eduardo
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3 answers

Syntax Error with flake8 and Pydantic Constrained Types: constr(regex=)

I use in Python the package pydantic and the linker Flake8. I want to use constr from pydantic with a regular Experssion. Only certain Characters should be passed. (a-z, A-Z, 0-9 and _) The regular Experssion "^[a-zA-Z0-9_]*$" works, but flake8…
Phil997
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flake8/pylint fails in Tox testing environment, raises InvocationError

I've been learning about how to do testing in tox for my python project. I have (what should be) a fairly standard tox initialization file that looks like the following: [tox] envlist=py27,flake8 ... [testenv:flake8] deps=flake8 commands=flake8…
kazimir.r
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2 answers

Flake8 disable all formatting rules

I use flake8 for linting and black for formatting. flake8 produces warnings on execution rules and formatting rules: I only want to see execution rules. I don't care about formatting rules because they'll automatically get fixed by black…
Brian Malehorn
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