Handle __init_subclass__

Author: domdfcoding

flake8_params/__init__.py

@@ -202,7 +202,7 @@ def _visit_function(self, node: Union[ast.FunctionDef, ast.AsyncFunctionDef]) ->
 		signature_args = list(get_signature_args(node))
 		decorators = list(get_decorator_names(node))
 
-		if node.name == "__new__":
+		if node.name in {"__new__", "__init_subclass__"}:
 			# Remove 'cls' etc.
 			signature_args.pop(0)
 

tests/example_code.py

@@ -361,3 +361,17 @@ def __new__(cls, a: int, b: str, c: int = 0) -> "MyTuple":
 		"""
 
 		return super().__new__((a, b, c))  # type: ignore[arg-type]
+
+
+# stdlib
+from abc import ABC
+
+
+class MyABC(ABC):
+
+	def __init_subclass__(cls, swallow, **kwargs) -> None:
+		r"""
+		Setup something in the subclass.
+
+		:param \*\*kwargs:
+		"""

tests/test_flake8_params_/test_plugin.txt

@@ -18,3 +18,4 @@
 292:0: PRM002 Missing parameters in docstring: *baz
 311:0: PRM002 Missing parameters in docstring: **baz
 356:1: PRM002 Missing parameters in docstring: a b c
+372:1: PRM002 Missing parameters in docstring: swallow