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Add a code linting tool chain

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- use flake8 as the main and pylint as the auxiliary linter
- install flake8 with the following plug-ins:
  + flake8-annotations => enforce type annotations for functions/classes
  + flake8-black => ensure black would not make any changes
  + flake8-expression-complexity
  + wemake-python-styleguide, which packages the following:
    * darglint         * flake8-bandit         * flake8-broken-line
    * flake8-bugbear   * flake8-commas         * flake8-comprehensions
    * flake8-debugger  * flake8-docstrings     * flake8-eradicate
    * flake8-isort     * flake8-rst-docstrings * flake8-string-format
    * flake8-quotes    * pep8-naming
- configure flake8 & friends in a rather explicit and strict way
- isort needed to be downgraded to ^4.3.21 due to a conflict with
  pylint and wemake-python-styleguide:
  + provide TODO's to remove the parts that "fix" isort
- use mypy for static type checking
- add a nox session "lint" that runs flake8, mypy, and pylint
- lint all source files
This commit is contained in:
Alexander Hess 2020-08-03 22:41:37 +02:00
parent bb6de05709
commit c7989e0040
Signed by: alexander
GPG key ID: 344EA5AB10D868E0
4 changed files with 938 additions and 24 deletions
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67
noxfile.py
View file

@ -1,8 +1,9 @@
"""Configure nox for the isolated test and lint environments.""" """Configure nox for the isolated test and lint environments."""
import contextlib
import os import os
import tempfile import tempfile
from typing import Any from typing import Any, Generator
import nox import nox
from nox.sessions import Session from nox.sessions import Session
@ -34,7 +35,7 @@ nox.options.sessions = (
@nox.session(name='format', python=MAIN_PYTHON) @nox.session(name='format', python=MAIN_PYTHON)
def format_(session: Session): def format_(session: Session) -> None:
"""Format source files with autoflake, black, and isort.""" """Format source files with autoflake, black, and isort."""
_begin(session) _begin(session)
_install_packages(session, 'autoflake', 'black', 'isort') _install_packages(session, 'autoflake', 'black', 'isort')
@ -54,24 +55,52 @@ def format_(session: Session):
) )
session.run('black', '--version') session.run('black', '--version')
session.run('black', *locations) session.run('black', *locations)
session.run('isort', '--version') with _isort_fix(session): # TODO (isort): Remove after upgrading
session.run('isort', *locations) session.run('isort', '--version')
session.run('isort', *locations)
@nox.session(python=MAIN_PYTHON) @nox.session(python=MAIN_PYTHON)
def lint(session: Session): def lint(session: Session) -> None:
"""Lint source files.""" """Lint source files with flake8, mypy, and pylint."""
_begin(session) _begin(session)
_install_packages(
session,
'flake8',
'flake8-annotations',
'flake8-black',
'flake8-expression-complexity',
'mypy',
'pylint',
'wemake-python-styleguide',
)
# Interpret extra arguments as locations of source files.
locations = session.posargs or SRC_LOCATIONS
session.run('flake8', '--version')
session.run('flake8', '--ignore=I0', *locations) # TODO (isort): Remove flag
with _isort_fix(session): # TODO (isort): Remove after upgrading
session.run('isort', '--version')
session.run('isort', '--check-only', *locations)
session.run('mypy', '--version')
session.run('mypy', *locations)
# Ignore errors where pylint cannot import a third-party package due its
# being run in an isolated environment. One way to fix this is to install
# all develop dependencies in this nox session, which we do not do. The
# whole point of static linting tools is to not rely on any package be
# importable at runtime. Instead, these imports are validated implicitly
# when the test suite is run.
session.run('pylint', '--version')
session.run('pylint', '--disable=import-error', *locations)
@nox.session(python=[MAIN_PYTHON, NEXT_PYTHON]) @nox.session(python=[MAIN_PYTHON, NEXT_PYTHON])
def test(session: Session): def test(session: Session) -> None:
"""Test the code base.""" """Test the code base."""
_begin(session) _begin(session)
@nox.session(name='pre-commit', python=MAIN_PYTHON, venv_backend='none') @nox.session(name='pre-commit', python=MAIN_PYTHON, venv_backend='none')
def pre_commit(session: Session): def pre_commit(session: Session) -> None:
"""Source files must be well-formed before they enter git.""" """Source files must be well-formed before they enter git."""
_begin(session) _begin(session)
session.notify('format') session.notify('format')
@ -79,7 +108,7 @@ def pre_commit(session: Session):
@nox.session(name='pre-merge', python=MAIN_PYTHON, venv_backend='none') @nox.session(name='pre-merge', python=MAIN_PYTHON, venv_backend='none')
def pre_merge(session: Session): def pre_merge(session: Session) -> None:
"""The test suite must pass before merges are made.""" """The test suite must pass before merges are made."""
_begin(session) _begin(session)
session.notify('test') session.notify('test')
@ -88,17 +117,17 @@ def pre_merge(session: Session):
def _begin(session: Session) -> None: def _begin(session: Session) -> None:
"""Show generic info about a session.""" """Show generic info about a session."""
if session.posargs: if session.posargs:
print('extra arguments:', *session.posargs) print('extra arguments:', *session.posargs) # noqa:WPS421
session.run('python', '--version') session.run('python', '--version')
# Fake GNU's pwd. # Fake GNU's pwd.
session.log('pwd') session.log('pwd')
print(os.getcwd()) print(os.getcwd()) # noqa:WPS421
def _install_packages( def _install_packages(
session: Session, *packages_or_pip_args: str, **kwargs: Any session: Session, *packages_or_pip_args: str, **kwargs: Any,
) -> None: ) -> None:
"""Install packages respecting the poetry.lock file. """Install packages respecting the poetry.lock file.
@ -110,7 +139,7 @@ def _install_packages(
session: the Session object session: the Session object
*packages_or_pip_args: the packages to be installed or pip options *packages_or_pip_args: the packages to be installed or pip options
**kwargs: passed on to nox.sessions.Session.install() **kwargs: passed on to nox.sessions.Session.install()
""" """ # noqa:RST210,RST213
if session.virtualenv.reuse_existing: if session.virtualenv.reuse_existing:
session.log( session.log(
'No dependencies are installed as an existing environment is re-used', 'No dependencies are installed as an existing environment is re-used',
@ -131,3 +160,15 @@ def _install_packages(
session.install( session.install(
f'--constraint={requirements_txt.name}', *packages_or_pip_args, **kwargs, f'--constraint={requirements_txt.name}', *packages_or_pip_args, **kwargs,
) )
# TODO (isort): Remove this fix after
# upgrading to isort ^5.2.2 in pyproject.toml.
@contextlib.contextmanager
def _isort_fix(session: Session) -> Generator:
"""Temporarily upgrade to isort 5.2.2."""
session.install('isort==5.2.2')
try:
yield
finally:
session.install('isort==4.3.21')

738
poetry.lock generated
View file

@ -17,6 +17,38 @@ version = "1.12.0"
[package.extras] [package.extras]
test = ["coverage", "flake8", "pexpect", "wheel"] test = ["coverage", "flake8", "pexpect", "wheel"]
[[package]]
category = "dev"
description = "Read/rewrite/write Python ASTs"
name = "astor"
optional = false
python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
version = "0.8.1"
[[package]]
category = "dev"
description = "Pretty print the output of python stdlib `ast.parse`."
name = "astpretty"
optional = false
python-versions = ">=3.6.1"
version = "2.0.0"
[package.extras]
typed = ["typed-ast"]
[[package]]
category = "dev"
description = "An abstract syntax tree for Python with inference support."
name = "astroid"
optional = false
python-versions = ">=3.5"
version = "2.4.2"
[package.dependencies]
lazy-object-proxy = ">=1.4.0,<1.5.0"
six = ">=1.12,<2.0"
wrapt = ">=1.11,<2.0"
[[package]] [[package]]
category = "dev" category = "dev"
description = "Classes Without Boilerplate" description = "Classes Without Boilerplate"
@ -42,6 +74,21 @@ version = "1.3.1"
[package.dependencies] [package.dependencies]
pyflakes = ">=1.1.0" pyflakes = ">=1.1.0"
[[package]]
category = "dev"
description = "Security oriented static analyser for python code."
name = "bandit"
optional = false
python-versions = "*"
version = "1.6.2"
[package.dependencies]
GitPython = ">=1.0.1"
PyYAML = ">=3.13"
colorama = ">=0.3.9"
six = ">=1.10.0"
stevedore = ">=1.20.0"
[[package]] [[package]]
category = "dev" category = "dev"
description = "The uncompromising code formatter." description = "The uncompromising code formatter."
@ -73,7 +120,7 @@ version = "7.1.2"
[[package]] [[package]]
category = "dev" category = "dev"
description = "Cross-platform colored terminal text." description = "Cross-platform colored terminal text."
marker = "sys_platform == \"win32\"" marker = "sys_platform == \"win32\" or platform_system == \"Windows\""
name = "colorama" name = "colorama"
optional = false optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*" python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
@ -90,6 +137,14 @@ version = "4.2.1"
[package.dependencies] [package.dependencies]
colorama = "*" colorama = "*"
[[package]]
category = "dev"
description = "A utility for ensuring Google-style docstrings stay up to date with the source code."
name = "darglint"
optional = false
python-versions = ">=3.5,<4.0"
version = "1.5.2"
[[package]] [[package]]
category = "dev" category = "dev"
description = "Distribution utilities" description = "Distribution utilities"
@ -98,6 +153,22 @@ optional = false
python-versions = "*" python-versions = "*"
version = "0.3.1" version = "0.3.1"
[[package]]
category = "dev"
description = "Docutils -- Python Documentation Utilities"
name = "docutils"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
version = "0.16"
[[package]]
category = "dev"
description = "Removes commented-out code."
name = "eradicate"
optional = false
python-versions = "*"
version = "1.0"
[[package]] [[package]]
category = "dev" category = "dev"
description = "A platform independent file lock." description = "A platform independent file lock."
@ -106,18 +177,290 @@ optional = false
python-versions = "*" python-versions = "*"
version = "3.0.12" version = "3.0.12"
[[package]]
category = "dev"
description = "the modular source code checker: pep8 pyflakes and co"
name = "flake8"
optional = false
python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
version = "3.8.3"
[package.dependencies]
mccabe = ">=0.6.0,<0.7.0"
pycodestyle = ">=2.6.0a1,<2.7.0"
pyflakes = ">=2.2.0,<2.3.0"
[[package]]
category = "dev"
description = "Flake8 Type Annotation Checks"
name = "flake8-annotations"
optional = false
python-versions = ">=3.6.1,<4.0.0"
version = "2.3.0"
[package.dependencies]
flake8 = ">=3.7,<3.9"
[[package]]
category = "dev"
description = "Automated security testing with bandit and flake8."
name = "flake8-bandit"
optional = false
python-versions = "*"
version = "2.1.2"
[package.dependencies]
bandit = "*"
flake8 = "*"
flake8-polyfill = "*"
pycodestyle = "*"
[[package]]
category = "dev"
description = "flake8 plugin to call black as a code style validator"
name = "flake8-black"
optional = false
python-versions = "*"
version = "0.2.1"
[package.dependencies]
black = "*"
flake8 = ">=3.0.0"
[[package]]
category = "dev"
description = "Flake8 plugin to forbid backslashes for line breaks"
name = "flake8-broken-line"
optional = false
python-versions = ">=3.6,<4.0"
version = "0.2.1"
[package.dependencies]
flake8 = ">=3.5,<4.0"
[[package]]
category = "dev"
description = "A plugin for flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle."
name = "flake8-bugbear"
optional = false
python-versions = ">=3.5"
version = "19.8.0"
[package.dependencies]
attrs = "*"
flake8 = ">=3.0.0"
[[package]]
category = "dev"
description = "Flake8 lint for trailing commas."
name = "flake8-commas"
optional = false
python-versions = "*"
version = "2.0.0"
[package.dependencies]
flake8 = ">=2,<4.0.0"
[[package]]
category = "dev"
description = "A flake8 plugin to help you write better list/set/dict comprehensions."
name = "flake8-comprehensions"
optional = false
python-versions = ">=3.5"
version = "3.2.3"
[package.dependencies]
flake8 = ">=3.0,<3.2.0 || >3.2.0,<4"
[[package]]
category = "dev"
description = "ipdb/pdb statement checker plugin for flake8"
name = "flake8-debugger"
optional = false
python-versions = "*"
version = "3.2.1"
[package.dependencies]
flake8 = ">=1.5"
pycodestyle = "*"
[[package]]
category = "dev"
description = "Extension for flake8 which uses pydocstyle to check docstrings"
name = "flake8-docstrings"
optional = false
python-versions = "*"
version = "1.5.0"
[package.dependencies]
flake8 = ">=3"
pydocstyle = ">=2.1"
[[package]]
category = "dev"
description = "Flake8 plugin to find commented out code"
name = "flake8-eradicate"
optional = false
python-versions = ">=3.6,<4.0"
version = "0.3.0"
[package.dependencies]
attrs = "*"
eradicate = ">=1.0,<2.0"
flake8 = ">=3.5,<4.0"
[[package]]
category = "dev"
description = "A flake8 extension that checks expressions complexity"
name = "flake8-expression-complexity"
optional = false
python-versions = ">=3.6"
version = "0.0.8"
[package.dependencies]
astpretty = "*"
flake8 = "*"
setuptools = "*"
[[package]]
category = "dev"
description = "flake8 plugin that integrates isort ."
name = "flake8-isort"
optional = false
python-versions = "*"
version = "3.0.1"
[package.dependencies]
flake8 = ">=3.2.1,<4"
testfixtures = ">=6.8.0,<7"
[package.dependencies.isort]
extras = ["pyproject"]
version = ">=4.3.5,<5"
[package.extras]
test = ["pytest (>=4.0.2,<6)"]
[[package]]
category = "dev"
description = "Polyfill package for Flake8 plugins"
name = "flake8-polyfill"
optional = false
python-versions = "*"
version = "1.0.2"
[package.dependencies]
flake8 = "*"
[[package]]
category = "dev"
description = "Flake8 lint for quotes."
name = "flake8-quotes"
optional = false
python-versions = "*"
version = "2.1.2"
[package.dependencies]
flake8 = "*"
[[package]]
category = "dev"
description = "Python docstring reStructuredText (RST) validator"
name = "flake8-rst-docstrings"
optional = false
python-versions = "*"
version = "0.0.12"
[package.dependencies]
flake8 = ">=3.0.0"
restructuredtext_lint = "*"
[[package]]
category = "dev"
description = "string format checker, plugin for flake8"
name = "flake8-string-format"
optional = false
python-versions = "*"
version = "0.2.3"
[package.dependencies]
flake8 = "*"
[[package]]
category = "dev"
description = "Git Object Database"
name = "gitdb"
optional = false
python-versions = ">=3.4"
version = "4.0.5"
[package.dependencies]
smmap = ">=3.0.1,<4"
[[package]]
category = "dev"
description = "Python Git Library"
name = "gitpython"
optional = false
python-versions = ">=3.4"
version = "3.1.7"
[package.dependencies]
gitdb = ">=4.0.1,<5"
[[package]] [[package]]
category = "dev" category = "dev"
description = "A Python utility / library to sort Python imports." description = "A Python utility / library to sort Python imports."
name = "isort" name = "isort"
optional = false optional = false
python-versions = ">=3.6,<4.0" python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
version = "5.2.2" version = "4.3.21"
[package.extras] [package.extras]
colors = ["colorama (>=0.4.3,<0.5.0)"] pipfile = ["pipreqs", "requirementslib"]
pipfile_deprecated_finder = ["pipreqs", "requirementslib", "tomlkit (>=0.5.3)"] pyproject = ["toml"]
requirements_deprecated_finder = ["pipreqs", "pip-api"] requirements = ["pipreqs", "pip-api"]
xdg_home = ["appdirs (>=1.4.0)"]
[[package]]
category = "dev"
description = "A fast and thorough lazy object proxy."
name = "lazy-object-proxy"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
version = "1.4.3"
[[package]]
category = "dev"
description = "McCabe checker, plugin for flake8"
name = "mccabe"
optional = false
python-versions = "*"
version = "0.6.1"
[[package]]
category = "dev"
description = "Optional static typing for Python"
name = "mypy"
optional = false
python-versions = ">=3.5"
version = "0.782"
[package.dependencies]
mypy-extensions = ">=0.4.3,<0.5.0"
typed-ast = ">=1.4.0,<1.5.0"
typing-extensions = ">=3.7.4"
[package.extras]
dmypy = ["psutil (>=4.0)"]
[[package]]
category = "dev"
description = "Experimental type system extensions for programs checked with the mypy typechecker."
name = "mypy-extensions"
optional = false
python-versions = "*"
version = "0.4.3"
[[package]] [[package]]
category = "dev" category = "dev"
@ -144,6 +487,25 @@ optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*" python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
version = "0.8.0" version = "0.8.0"
[[package]]
category = "dev"
description = "Python Build Reasonableness"
name = "pbr"
optional = false
python-versions = "*"
version = "5.4.5"
[[package]]
category = "dev"
description = "Check PEP-8 naming conventions, plugin for flake8"
name = "pep8-naming"
optional = false
python-versions = "*"
version = "0.9.1"
[package.dependencies]
flake8-polyfill = ">=1.0.2,<2"
[[package]] [[package]]
category = "dev" category = "dev"
description = "library with cross-python path, ini-parsing, io, code, log facilities" description = "library with cross-python path, ini-parsing, io, code, log facilities"
@ -152,6 +514,25 @@ optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*" python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
version = "1.9.0" version = "1.9.0"
[[package]]
category = "dev"
description = "Python style guide checker"
name = "pycodestyle"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
version = "2.6.0"
[[package]]
category = "dev"
description = "Python docstring style checker"
name = "pydocstyle"
optional = false
python-versions = ">=3.5"
version = "5.0.2"
[package.dependencies]
snowballstemmer = "*"
[[package]] [[package]]
category = "dev" category = "dev"
description = "passive checker of Python programs" description = "passive checker of Python programs"
@ -160,6 +541,37 @@ optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*" python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
version = "2.2.0" version = "2.2.0"
[[package]]
category = "dev"
description = "Pygments is a syntax highlighting package written in Python."
name = "pygments"
optional = false
python-versions = ">=3.5"
version = "2.6.1"
[[package]]
category = "dev"
description = "python code static checker"
name = "pylint"
optional = false
python-versions = ">=3.5.*"
version = "2.5.3"
[package.dependencies]
astroid = ">=2.4.0,<=2.5"
colorama = "*"
isort = ">=4.2.5,<5"
mccabe = ">=0.6,<0.7"
toml = ">=0.7.1"
[[package]]
category = "dev"
description = "YAML parser and emitter for Python"
name = "pyyaml"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
version = "5.3.1"
[[package]] [[package]]
category = "dev" category = "dev"
description = "Alternative regular expression module, to replace re." description = "Alternative regular expression module, to replace re."
@ -168,6 +580,17 @@ optional = false
python-versions = "*" python-versions = "*"
version = "2020.7.14" version = "2020.7.14"
[[package]]
category = "dev"
description = "reStructuredText linter"
name = "restructuredtext-lint"
optional = false
python-versions = "*"
version = "1.3.1"
[package.dependencies]
docutils = ">=0.11,<1.0"
[[package]] [[package]]
category = "dev" category = "dev"
description = "Python 2 and 3 compatibility utilities" description = "Python 2 and 3 compatibility utilities"
@ -176,6 +599,46 @@ optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*" python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
version = "1.15.0" version = "1.15.0"
[[package]]
category = "dev"
description = "A pure Python implementation of a sliding window memory map manager"
name = "smmap"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
version = "3.0.4"
[[package]]
category = "dev"
description = "This package provides 26 stemmers for 25 languages generated from Snowball algorithms."
name = "snowballstemmer"
optional = false
python-versions = "*"
version = "2.0.0"
[[package]]
category = "dev"
description = "Manage dynamic plugins for Python applications"
name = "stevedore"
optional = false
python-versions = ">=3.6"
version = "3.2.0"
[package.dependencies]
pbr = ">=2.0.0,<2.1.0 || >2.1.0"
[[package]]
category = "dev"
description = "A collection of helpers and mock objects for unit tests and doc tests."
name = "testfixtures"
optional = false
python-versions = "*"
version = "6.14.1"
[package.extras]
build = ["setuptools-git", "wheel", "twine"]
docs = ["sphinx", "zope.component", "sybil", "twisted", "mock", "django (<2)", "django"]
test = ["pytest (>=3.6)", "pytest-cov", "pytest-django", "zope.component", "sybil", "twisted", "mock", "django (<2)", "django"]
[[package]] [[package]]
category = "dev" category = "dev"
description = "Python Library for Tom's Obvious, Minimal Language" description = "Python Library for Tom's Obvious, Minimal Language"
@ -192,6 +655,14 @@ optional = false
python-versions = "*" python-versions = "*"
version = "1.4.1" version = "1.4.1"
[[package]]
category = "dev"
description = "Backported and Experimental Type Hints for Python 3.5+"
name = "typing-extensions"
optional = false
python-versions = "*"
version = "3.7.4.2"
[[package]] [[package]]
category = "dev" category = "dev"
description = "Virtual Python Environment builder" description = "Virtual Python Environment builder"
@ -210,8 +681,45 @@ six = ">=1.9.0,<2"
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[[package]]
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name = "wemake-python-styleguide"
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[[package]]
category = "dev"
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nox = [ nox = [
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@ -267,14 +919,51 @@ pathspec = [
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] ]
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{file = "pbr-5.4.5.tar.gz", hash = "sha256:07f558fece33b05caf857474a366dfcc00562bca13dd8b47b2b3e22d9f9bf55c"},
]
pep8-naming = [
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py = [ py = [
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pydocstyle = [
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pyflakes = [ pyflakes = [
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] ]
pygments = [
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pylint = [
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{file = "pylint-2.5.3.tar.gz", hash = "sha256:7dd78437f2d8d019717dbf287772d0b2dbdfd13fc016aa7faa08d67bccc46adc"},
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pyyaml = [
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{file = "PyYAML-5.3.1-cp35-cp35m-win32.whl", hash = "sha256:4f4b913ca1a7319b33cfb1369e91e50354d6f07a135f3b901aca02aa95940bd2"},
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{file = "PyYAML-5.3.1-cp36-cp36m-win32.whl", hash = "sha256:7739fc0fa8205b3ee8808aea45e968bc90082c10aef6ea95e855e10abf4a37b2"},
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{file = "PyYAML-5.3.1-cp37-cp37m-win_amd64.whl", hash = "sha256:73f099454b799e05e5ab51423c7bcf361c58d3206fa7b0d555426b1f4d9a3eaf"},
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{file = "PyYAML-5.3.1-cp38-cp38-win_amd64.whl", hash = "sha256:95f71d2af0ff4227885f7a6605c37fd53d3a106fcab511b8860ecca9fcf400ee"},
{file = "PyYAML-5.3.1.tar.gz", hash = "sha256:b8eac752c5e14d3eca0e6dd9199cd627518cb5ec06add0de9d32baeee6fe645d"},
]
regex = [ regex = [
{file = "regex-2020.7.14-cp27-cp27m-win32.whl", hash = "sha256:e46d13f38cfcbb79bfdb2964b0fe12561fe633caf964a77a5f8d4e45fe5d2ef7"}, {file = "regex-2020.7.14-cp27-cp27m-win32.whl", hash = "sha256:e46d13f38cfcbb79bfdb2964b0fe12561fe633caf964a77a5f8d4e45fe5d2ef7"},
{file = "regex-2020.7.14-cp27-cp27m-win_amd64.whl", hash = "sha256:6961548bba529cac7c07af2fd4d527c5b91bb8fe18995fed6044ac22b3d14644"}, {file = "regex-2020.7.14-cp27-cp27m-win_amd64.whl", hash = "sha256:6961548bba529cac7c07af2fd4d527c5b91bb8fe18995fed6044ac22b3d14644"},
@ -298,10 +987,29 @@ regex = [
{file = "regex-2020.7.14-cp38-cp38-win_amd64.whl", hash = "sha256:7a2dd66d2d4df34fa82c9dc85657c5e019b87932019947faece7983f2089a840"}, {file = "regex-2020.7.14-cp38-cp38-win_amd64.whl", hash = "sha256:7a2dd66d2d4df34fa82c9dc85657c5e019b87932019947faece7983f2089a840"},
{file = "regex-2020.7.14.tar.gz", hash = "sha256:3a3af27a8d23143c49a3420efe5b3f8cf1a48c6fc8bc6856b03f638abc1833bb"}, {file = "regex-2020.7.14.tar.gz", hash = "sha256:3a3af27a8d23143c49a3420efe5b3f8cf1a48c6fc8bc6856b03f638abc1833bb"},
] ]
restructuredtext-lint = [
{file = "restructuredtext_lint-1.3.1.tar.gz", hash = "sha256:470e53b64817211a42805c3a104d2216f6f5834b22fe7adb637d1de4d6501fb8"},
]
six = [ six = [
{file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"}, {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},
{file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"}, {file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"},
] ]
smmap = [
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{file = "smmap-3.0.4.tar.gz", hash = "sha256:9c98bbd1f9786d22f14b3d4126894d56befb835ec90cef151af566c7e19b5d24"},
]
snowballstemmer = [
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{file = "snowballstemmer-2.0.0.tar.gz", hash = "sha256:df3bac3df4c2c01363f3dd2cfa78cce2840a79b9f1c2d2de9ce8d31683992f52"},
]
stevedore = [
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{file = "stevedore-3.2.0.tar.gz", hash = "sha256:38791aa5bed922b0a844513c5f9ed37774b68edc609e5ab8ab8d8fe0ce4315e5"},
]
testfixtures = [
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{file = "testfixtures-6.14.1.tar.gz", hash = "sha256:58d2b3146d93bc5ddb0cd24e0ccacb13e29bdb61e5c81235c58f7b8ee4470366"},
]
toml = [ toml = [
{file = "toml-0.10.1-py2.py3-none-any.whl", hash = "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"}, {file = "toml-0.10.1-py2.py3-none-any.whl", hash = "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"},
{file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"}, {file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
@ -329,7 +1037,19 @@ typed-ast = [
{file = "typed_ast-1.4.1-cp39-cp39-macosx_10_15_x86_64.whl", hash = "sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34"}, {file = "typed_ast-1.4.1-cp39-cp39-macosx_10_15_x86_64.whl", hash = "sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34"},
{file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"}, {file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"},
] ]
typing-extensions = [
{file = "typing_extensions-3.7.4.2-py2-none-any.whl", hash = "sha256:f8d2bd89d25bc39dabe7d23df520442fa1d8969b82544370e03d88b5a591c392"},
{file = "typing_extensions-3.7.4.2-py3-none-any.whl", hash = "sha256:6e95524d8a547a91e08f404ae485bbb71962de46967e1b71a0cb89af24e761c5"},
{file = "typing_extensions-3.7.4.2.tar.gz", hash = "sha256:79ee589a3caca649a9bfd2a8de4709837400dfa00b6cc81962a1e6a1815969ae"},
]
virtualenv = [ virtualenv = [
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{file = "virtualenv-20.0.29.tar.gz", hash = "sha256:f14a0a98ea4397f0d926cff950361766b6a73cd5975ae7eb259d12919f819a25"}, {file = "virtualenv-20.0.29.tar.gz", hash = "sha256:f14a0a98ea4397f0d926cff950361766b6a73cd5975ae7eb259d12919f819a25"},
] ]
wemake-python-styleguide = [
{file = "wemake-python-styleguide-0.14.1.tar.gz", hash = "sha256:e13dc580fa56b7b548de8da170bccb8ddff2d4ab026ca987db8a9893bf8a7b5b"},
{file = "wemake_python_styleguide-0.14.1-py3-none-any.whl", hash = "sha256:73a501e0547275287a2b926515c000cc25026a8bceb9dcc1bf73ef85a223a3c6"},
]
wrapt = [
{file = "wrapt-1.12.1.tar.gz", hash = "sha256:b62ffa81fb85f4332a4f609cab4ac40709470da05643a082ec1eb88e6d9b97d7"},
]

13
pyproject.toml
View file

@ -4,7 +4,7 @@ requires = ["poetry>=0.12"]
[tool.black] [tool.black]
line-length = 88 line-length = 88
skip-string-normalization = true skip-string-normalization = true # wemake-python-styleguide enforces single quotes
target-version = ["py38"] target-version = ["py38"]
[tool.poetry] [tool.poetry]
@ -34,4 +34,13 @@ nox = "^2020.5.24"
# Code Formatters # Code Formatters
autoflake = "^1.3.1" autoflake = "^1.3.1"
black = "^19.10b0" black = "^19.10b0"
isort = "^5.2.2" isort = "^4.3.21" # TODO (isort): not ^5.2.2 due to pylint and wemake-python-styleguide
# (Static) Code Analyzers
flake8 = "^3.8.3"
flake8-annotations = "^2.3.0"
flake8-black = "^0.2.1"
flake8-expression-complexity = "^0.0.8"
mypy = "^0.782"
pylint = "^2.5.3"
wemake-python-styleguide = "^0.14.1" # flake8 plug-in

144
setup.cfg
View file

@ -2,6 +2,111 @@
# black's settings are in pyproject.toml => [tool.black] # black's settings are in pyproject.toml => [tool.black]
[flake8]
# Include error classes only explicitly
# to avoid forward compatibility issues.
select =
# =============
# flake8's base
# =============
# mccabe => cyclomatic complexity
C901,
# pycodestyle => PEP8 compliance
E, W,
# pyflakes => basic errors
F4, F5, F6, F7, F8, F9
# ========================
# wemake-python-styleguide
# Source: https://wemake-python-stylegui.de/en/latest/pages/usage/violations/index.html
# ========================
WPS1, WPS2, WPS3, WPS4, WPS5, WPS6,
# darglint => docstring matches implementation
DAR0, DAR1, DAR2, DAR3, DAR4, DAR5,
# flake8-bandit => common security issues
S1, S2, S3, S4, S5, S6, S7,
# flake8-broken-line => no \ to end a line
N400,
# flake8-bugbear => opinionated bugs and design flaws
B0, B3, B9,
# flake8-commas => better comma placements
C8,
# flake8-comprehensions => better comprehensions
C4,
# flake8-debugger => no debugger usage
T100,
# flake8-docstrings => PEP257 compliance
D1, D2, D3, D4,
# flake8-eradicate => no commented out code
E800,
# flake8-isort => isort would make changes
I0,
# flake8-rst-docstrings => valid rst in docstrings
RST2, RST3, RST4,
# flake8-string-format => unify usage of str.format()
P1, P2, P3,
# flake8-quotes => use double quotes everywhere (complying with black)
Q0,
# pep8-naming
N8,
# =====
# other
# =====
# flake8-annotations => enforce type checking for functions
ANN0, ANN2, ANN3,
# flake8-black => complain if black would make changes
BLK1, BLK9,
# flake8-expression-complexity => not too many expressions at once
ECE001,
# By default, flake8 ignores some errors.
# Instead, do not ignore anything.
ignore =
# If --ignore is passed on the command
# line, still ignore the following:
extend-ignore =
# Comply with black's style.
# Source: https://github.com/psf/black/blob/master/docs/compatible_configs.md#flake8
E203, W503,
# f-strings are ok.
WPS305,
per-file-ignores =
noxfile.py:
# TODO (isort): Check if still too many module members.
WPS202,
# TODO (isort): Remove after simplifying the nox session "lint".
WPS213,
# No overuse of string constants (e.g., '--version').
WPS226,
# Explicitly set mccabe's maximum complexity to 10 as recommended by
# Thomas McCabe, the inventor of the McCabe complexity, and the NIST.
# Source: https://en.wikipedia.org/wiki/Cyclomatic_complexity#Limiting_complexity_during_development
max-complexity = 10
# Comply with black's style.
# Source: https://github.com/psf/black/blob/master/docs/the_black_code_style.md#line-length
max-line-length = 88
# Preview the code lines that cause errors.
show-source = true
# ===================================
# wemake-python-styleguide's settings
# ===================================
allowed-domain-names =
result,
min-name-length = 3
max-name-length = 40
# darglint
strictness = long
# flake8-docstrings
docstring-convention = google
# flake8-eradicate
eradicate-aggressive = true
[isort] [isort]
atomic = true atomic = true
case_sensitive = true case_sensitive = true
@ -24,3 +129,42 @@ use_parentheses = true
# Source: https://google.github.io/styleguide/pyguide.html#313-imports-formatting # Source: https://google.github.io/styleguide/pyguide.html#313-imports-formatting
force_single_line = true force_single_line = true
single_line_exclusions = typing single_line_exclusions = typing
[mypy]
cache_dir = .cache/mypy
[mypy-nox.*]
ignore_missing_imports = true
[pylint.FORMAT]
# Comply with black's style.
max-line-length = 88
[pylint.MESSAGES CONTROL]
disable =
# We use TODO's to indicate locations in the source base
# that must be worked on in the near future.
fixme,
# Comply with black's style.
bad-continuation, bad-whitespace,
# =====================
# flake8 de-duplication
# Source: https://pylint.pycqa.org/en/latest/faq.html#i-am-using-another-popular-linter-alongside-pylint-which-messages-should-i-disable-to-avoid-duplicates
# =====================
# mccabe
too-many-branches,
# pep8-naming
bad-classmethod-argument, bad-mcs-classmethod-argument,
invalid-name, no-self-argument,
# pycodestyle
bad-indentation, bare-except, line-too-long, missing-final-newline,
multiple-statements, trailing-whitespace, unnecessary-semicolon, unneeded-not,
# pydocstyle
missing-class-docstring, missing-function-docstring, missing-module-docstring,
# pyflakes
undefined-variable, unused-import, unused-variable,
[pylint.REPORTS]
score = no