pycodestyle VS pyflakes

PEP8 (pycodestyle): Named after Python’s PEP 8 style guide, this tool checks your Python code against some of the style conventions in PEP 8.

pycodestyle linter (used in Flake8 under the hood by default) already has E501 and W505 rules to validate the line length. flake8-length provides an alternative check that is smarter and more forgiving.

[flake8] max-line-length = 88 ignore = # False positive whitespace before ':' on list slice. # See https://github.com/PyCQA/pycodestyle/issues/373 for details E203

Linters analyze code to detect various categories of issues like logistical issue and stylistic issues. Some popular linters are Pylint, pycodestyle, Flake8 and Pylama.

Link. When I write Python I usually have pycodestyle as my linter, and this got me thinking: If I already have a linter configuration for a project, why not just use the linter configuration as my editor configuration as well? The linter configuration is useful to others even if they use a different editor and I don't have to duplicate it in a local vimrc or editorconfig file. I can just use what I already have.

Pyflakes is a simple program that checks Python source files for errors. It is similar to PyLint but focuses only on errors, not style. This makes it faster and less intrusive than some other tools.

pyflakes

PyFlakes—another bug checker (it only checks for logical errors, not for style, but it works faster);

Flake8: a combination of following linters: PyFlakes, pycodestyle, Ned Batchelder’s McCabe script