More type fixes

pyproject.toml

@@ -51,6 +51,8 @@ tox = "^3.0"
 vendoring = {version = "^1.0", python = "^3.8"}
 build = "^0.7.0"
 mypy = ">=0.950"
+types-jsonschema = ">=4.4.4"
+types-setuptools = ">=57.4.14"
 
 [tool.black]
 line-length = 88
@@ -84,9 +86,7 @@ exclude = "(?x)(^tests/.*/fixtures | ^src/poetry/core/_vendor)"
 
 [[tool.mypy.overrides]]
 module = [
-  'jsonschema.*',
   'lark.*',
-  'setuptools.*',
   'tomlkit.*',
   'virtualenv.*',
 ]

src/poetry/core/json/__init__.py

@@ -15,12 +15,12 @@ class ValidationError(ValueError):
 
 
 def validate_object(obj: dict[str, Any], schema_name: str) -> list[str]:
-    schema = os.path.join(SCHEMA_DIR, f"{schema_name}.json")
+    schema_file = os.path.join(SCHEMA_DIR, f"{schema_name}.json")
 
-    if not os.path.exists(schema):
+    if not os.path.exists(schema_file):
         raise ValueError(f"Schema {schema_name} does not exist.")
 
-    with open(schema, encoding="utf-8") as f:
+    with open(schema_file, encoding="utf-8") as f:
         schema = json.loads(f.read())
 
     from jsonschema import Draft7Validator

src/poetry/core/packages/package.py

@@ -526,14 +526,14 @@ def with_python_versions(self, python_versions: str) -> Iterator[None]:
 
         self.python_versions = original_python_versions
 
-    def with_features(self, features: Iterable[str]) -> Package:
+    def with_features(self: T, features: Iterable[str]) -> T:
         package = self.clone()
 
         package._features = frozenset(features)
 
         return package
 
-    def without_features(self) -> Package:
+    def without_features(self: T) -> T:
         return self.with_features([])
 
     def clone(self: T) -> T:

tests/fixtures/project_with_setup/setup.py

@@ -1,7 +1,7 @@
 from setuptools import setup
 
 
-kwargs = dict(
+setup(
     name="my-package",
     license="MIT",
     version="0.1.2",
@@ -12,6 +12,3 @@
     packages=["my_package"],
     install_requires=["pendulum>=1.4.4", "cachy[msgpack]>=0.2.0"],
 )
-
-
-setup(**kwargs)