Must not use explicit object base-class (#2888)

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11']
 
     steps:
     - uses: actions/checkout@v4
@@ -60,7 +60,7 @@ jobs:
     - name: Setup Node
       uses: actions/setup-node@v4
       with:
-        node-version: '16'
+        node-version: '18'
 
     - name: Install remark presets
       run: |

CHANGELOG.md

@@ -21,6 +21,15 @@ Semantic versioning in our case means:
 
 ### Features
 
+- Adds official `python3.12` support
+- **Breaking**: drops `python3.8` support
+- **Breaking**: Reconsider `object` required base class exception:
+  since `class Klass[_Type]` must not contain `object`,
+  this rule is change to be the opposite:
+  `object` explicit base class must not be used.
+  You can use `ruff` to change all `object`-based types to the new style:
+  `ruff check --select=UP004 --fix .`
+  https://docs.astral.sh/ruff/rules/useless-object-inheritance/
 - `wemake` output formatter now respects `NO_COLOR=1` option
   to disable text highlighting. See https://no-color.org
 - Add `ImportObjectCollisionViolation` to detect
@@ -31,10 +40,12 @@ Semantic versioning in our case means:
 - Fix `ForbiddenInlineIgnoreViolation` config parsing. #2590
 - Fix `WrongEmptyLinesCountViolation` for func definitions with ellipsis. #2847
 - Fix `WrongEmptyLinesCountViolation` for multiline implicit string concatination. #2787
+- Fix `ObjectInBaseClassesListViolation` to include type name
 
 ### Misc
 
-- Replaced `you` with `your`
+- Fixed multiple typos in docs
+
 
 ## 0.18.0
 

docs/pages/usage/integrations/pylint.rst

@@ -20,7 +20,7 @@ that ``pylint`` is less radical and more classic in its rules.
 They are almost compatible with each other.
 The difference is in:
 
-- Several minor rules like `class Some(object):` vs `class Some:`
+- Several minor rules like `class Some:` vs `class Some:`
 - Error codes
 - Python versions, because ``pylint`` covers more versions
 - ``wemake-python-styleguide`` is stricter and finds more

pyproject.toml

@@ -46,7 +46,7 @@ WPS = "wemake_python_styleguide.checker:Checker"
 wemake = "wemake_python_styleguide.formatter:WemakeFormatter"
 
 [tool.poetry.dependencies]
-python = ">=3.8.1,<4.0"
+python = "^3.9"
 
 flake8 = ">5"
 attrs = "*"
@@ -60,7 +60,7 @@ flake8-quotes = "^3.0"
 flake8-comprehensions = "^3.1"
 flake8-docstrings = "^1.3"
 flake8-string-format = "^0.3"
-flake8-bugbear = ">=23.5,<25.0"
+flake8-bugbear = "^24.2"
 flake8-debugger = "^4.0"
 flake8-isort = "^6.0"
 flake8-eradicate = "^1.5"
@@ -71,41 +71,41 @@ pep8-naming = "^0.13"
 darglint = "^1.2"
 
 [tool.poetry.group.dev.dependencies]
-nitpick = ">=0.33,<0.36"
+nitpick = "^0.35"
 flake8-pytest-style = "^1.5"
 
-pytest = ">=7.3,<9.0"
-pytest-cov = ">=4,<6"
+pytest = "^8.1"
+pytest-cov = "^5.0"
 pytest-randomly = "^3.12"
-coverage-conditional-plugin = ">=0.8,<0.10"
-snapshottest = "^0.6"
+coverage-conditional-plugin = "^0.9"
+syrupy = "^4.6"
 hypothesis = "^6.35"
-hypothesmith = ">=0.2,<0.4"
+hypothesmith = "^0.3"
 
-mypy = "^1.3"
+mypy = "^1.9"
 
 autopep8 = "^2.0"
-import-linter = ">=1.2,<3.0"
+import-linter = "^2.0"
 
 astpath = "^0.9"
-lxml = ">=4.9,<6.0"
+lxml = "^5.1"
 nbqa = "^1.2"
-doc8 = ">=0.11,<1.2"
+doc8 = "^1.1"
 
 [tool.poetry.group.docs]
 optional = true
 
 [tool.poetry.group.docs.dependencies]
-sphinx = ">=6.2,<8.0"
-sphinx-autodoc-typehints = ">=1.12,<3.0"
+sphinx = "^7.1"
+sphinx-autodoc-typehints = "^2.0"
 sphinxcontrib-mermaid = "^0.9"
 added-value = "^0.24"
 m2r2 = "^0.3"
 tomli = "^2.0"
 
 
 [build-system]
-requires = ["poetry-core>=1.6.0"]
+requires = ["poetry-core>=1.9.0"]
 build-backend = "poetry.core.masonry.api"
 
 

setup.cfg

@@ -38,7 +38,7 @@ exclude =
   # These folders contain code badly written for reasons:
   # Project spefic, do not copy.
   tests/fixtures/**
-  tests/**/snapshots/**
+  tests/**/__snapshots__/**
 
 # Exclude some pydoctest checks globally:
 ignore = D100, D104, D401, W504, RST303, RST304, DAR103, DAR203

tests/fixtures/noqa/noqa.py

@@ -103,7 +103,7 @@ def foo_func():
     my_print('nope')
 
 
-class TooManyPublicAtts(object):  # noqa: WPS230
+class TooManyPublicAtts:  # noqa: WPS230
     def __init__(self):
         self.first = 1
         self.second = 2
@@ -126,7 +126,7 @@ def function_name(  # noqa: WPS614
 def some():  # noqa: WPS110
     from my_module import some_import  # noqa: WPS433
 
-    class Nested(object):  # noqa: WPS431
+    class Nested:  # noqa: WPS431
         ...  # noqa: WPS428, WPS604
 
     def nested():  # noqa: WPS430
@@ -155,7 +155,7 @@ def some_function():
 
 used, __ = 1, 2  # noqa: WPS123
 
-class Mem0Output(object):  # noqa: WPS124
+class Mem0Output:  # noqa: WPS124
     # See:
     # https://github.com/wemake-services/wemake-python-styleguide/issues/1191
     anti_wps124 = 'unreadable class'
@@ -203,7 +203,7 @@ def many_expressions(xy):  # noqa: WPS213
     my_print(xy)
 
 
-class TooManyMethods(object):  # noqa: WPS214
+class TooManyMethods:  # noqa: WPS214
     def method1(self):
         anti_wps428 = 1
 
@@ -290,13 +290,13 @@ def test_function():  # noqa: WPS231
     my_print('type')
 
 
-class BadClass:  # noqa: WPS306
+class BadClass(object):  # noqa: WPS306
     UPPER_CASE_ATTRIBUTE = 12  # noqa: WPS115
 
     def __del__(self, *_args, **_kwargs):  # noqa: WPS603
         anti_wps428 = 1  # noqa: WPS442
 
-    class Nested:  # noqa: WPS306,WPS431
+    class Nested(object):  # noqa: WPS306,WPS431
         anti_wps428 = 1
 
     async def __eq__(self, other):  # noqa: WPS610
@@ -435,7 +435,7 @@ class MyInt(int):  # noqa: WPS600
     """My custom int subclass."""
 
 
-class ShadowsAttribute(object):
+class ShadowsAttribute:
     """Redefines attr from class."""
 
     first: int
@@ -459,7 +459,7 @@ def __init__(self) -> None:
 nodes = nodes  # noqa: WPS434
 
 
-class Example(object):
+class Example:
     """Correct class docstring."""
 
     def __init__(self):  # noqa: WPS611
@@ -575,7 +575,7 @@ def bad_default_values(
     anti_wps428 = 'some text'
 
 
-class WrongMethodOrder(object):  # noqa: WPS338
+class WrongMethodOrder:  # noqa: WPS338
     def _protected(self):
         return self
 
@@ -627,7 +627,7 @@ async def async_gen():
     raise StopIteration  # noqa: WPS438
 
 
-class CheckStopIteration(object):
+class CheckStopIteration:
     def sync_gen(self):
         yield
         raise StopIteration()  # noqa: WPS438
@@ -717,7 +717,7 @@ def consecutive_yields():
 [first_number, second_number] = [4, 7]  # noqa: WPS359
 
 
-class AttributeGetter(object):
+class AttributeGetter:
     def __init__(self):
         self.attribute = 1
 
@@ -808,7 +808,7 @@ def bare_raise_function():
     raise raise_from_itself from raise_from_itself  # noqa: WPS469
 
 
-class TestClass(object, **{}):  # noqa: WPS470
+class TestClass(**{}):  # noqa: WPS470
     """Docs."""
 
 
@@ -820,7 +820,7 @@ def foo2_func():
 
 noqa_wps532 = variable is some_thing is other_thing  # noqa: WPS532
 
-class Baseline(object):
+class Baseline:
     def method(self, number):
         return number + 1
 

tests/fixtures/noqa/noqa38.py

@@ -9,7 +9,7 @@
 """
 
 
-class WithStatic(object):
+class WithStatic:
     @staticmethod
     def some_static(arg1):  # noqa: WPS602
         anti_wps428 = 1