Re-enable mypy & Resolve all [ignore-without-code]

mypy.ini

@@ -64,6 +64,6 @@ ignore_missing_imports = True
 
 # Even when excluding a module, import issues can show up due to following import
 # https://github.com/python/mypy/issues/11936#issuecomment-1466764006
-[mypy-setuptools.config._validate_pyproject.*,setuptools._distutils.*]
+[mypy-setuptools.config._validate_pyproject.*,setuptools._vendor.*,setuptools._distutils.*]
 follow_imports = silent
 # silent => ignore errors when following imports

pkg_resources/__init__.py

@@ -2777,7 +2777,7 @@ def load(
         if require:
             # We could pass `env` and `installer` directly,
             # but keeping `*args` and `**kwargs` for backwards compatibility
-            self.require(*args, **kwargs)  # type: ignore
+            self.require(*args, **kwargs)  # type: ignore[arg-type]
         return self.resolve()
 
     def resolve(self) -> _ResolvedEntryPoint:

pyproject.toml

@@ -216,7 +216,3 @@ formats = "zip"
 
 
 [tool.setuptools_scm]
-
-
-[tool.pytest-enabler.mypy]
-# Disabled due to jaraco/skeleton#143

setuptools/build_meta.py

@@ -419,7 +419,7 @@ def build_wheel(
     ):
         cmd = ['bdist_wheel']
         if metadata_directory:
-            cmd.extend(['--dist-info-dir', metadata_directory])
+            cmd.extend(['--dist-info-dir', str(metadata_directory)])
         with suppress_known_deprecation():
             return self._build_with_temp_dir(
                 cmd,

setuptools/config/expand.py

@@ -203,7 +203,8 @@ def _load_spec(spec: ModuleSpec, module_name: str) -> ModuleType:
         return sys.modules[name]
     module = importlib.util.module_from_spec(spec)
     sys.modules[name] = module  # cache (it also ensures `==` works on loaded items)
-    spec.loader.exec_module(module)  # type: ignore
+    assert spec.loader is not None
+    spec.loader.exec_module(module)
     return module
 
 
@@ -285,10 +286,11 @@ def find_packages(
 
     from setuptools.discovery import construct_package_dir
 
-    if namespaces:
-        from setuptools.discovery import PEP420PackageFinder as PackageFinder
+    # check "not namespaces" first due to python/mypy#6232
+    if not namespaces:
+        from setuptools.discovery import PackageFinder
     else:
-        from setuptools.discovery import PackageFinder  # type: ignore
+        from setuptools.discovery import PEP420PackageFinder as PackageFinder
 
     root_dir = root_dir or os.curdir
     where = kwargs.pop('where', ['.'])
@@ -359,7 +361,8 @@ def entry_points(text: str, text_source="entry-points") -> dict[str, dict]:
     entry-point names, and the second level values are references to objects
     (that correspond to the entry-point value).
     """
-    parser = ConfigParser(default_section=None, delimiters=("=",))  # type: ignore
+    # Using undocumented behaviour, see python/typeshed#12700
+    parser = ConfigParser(default_section=None, delimiters=("=",))  # type: ignore[call-overload]
     parser.optionxform = str  # case sensitive
     parser.read_string(text, text_source)
     groups = {k: dict(v.items()) for k, v in parser.items()}

setuptools/config/pyprojecttoml.py

@@ -44,8 +44,8 @@ def validate(config: dict, filepath: StrPath) -> bool:
 
     trove_classifier = validator.FORMAT_FUNCTIONS.get("trove-classifier")
     if hasattr(trove_classifier, "_disable_download"):
-        # Improve reproducibility by default. See issue 31 for validate-pyproject.
-        trove_classifier._disable_download()  # type: ignore
+        # Improve reproducibility by default. See abravalheri/validate-pyproject#31
+        trove_classifier._disable_download()  # type: ignore[union-attr]
 
     try:
         return validator.validate(config)

setuptools/msvc.py

@@ -1418,7 +1418,7 @@ def VCRuntimeRedist(self) -> str | None:
             os.path.join(prefix, arch_subdir, crt_dir, vcruntime)
             for (prefix, crt_dir) in itertools.product(prefixes, crt_dirs)
         )
-        return next(filter(os.path.isfile, candidate_paths), None)
+        return next(filter(os.path.isfile, candidate_paths), None)  # type: ignore[arg-type] #python/mypy#12682
 
     def return_env(self, exists=True):
         """

setuptools/tests/test_build_ext.py

@@ -183,7 +183,7 @@ def get_build_ext_cmd(self, optional: bool, **opts):
             "eggs.c": "#include missingheader.h\n",
             ".build": {"lib": {}, "tmp": {}},
         }
-        path.build(files)  # type: ignore[arg-type] # jaraco/path#232
+        path.build(files)  # jaraco/path#232
         extension = Extension('spam.eggs', ['eggs.c'], optional=optional)
         dist = Distribution(dict(ext_modules=[extension]))
         dist.script_name = 'setup.py'

setuptools/tests/test_editable_install.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os
 import platform
 import stat
@@ -8,6 +10,7 @@
 from importlib.machinery import EXTENSION_SUFFIXES
 from pathlib import Path
 from textwrap import dedent
+from typing import Any
 from unittest.mock import Mock
 from uuid import uuid4
 
@@ -840,7 +843,8 @@ class TestOverallBehaviour:
         version = "3.14159"
         """
 
-    FLAT_LAYOUT = {
+    # Any: Would need a TypedDict. Keep it simple for tests
+    FLAT_LAYOUT: dict[str, Any] = {
         "pyproject.toml": dedent(PYPROJECT),
         "MANIFEST.in": EXAMPLE["MANIFEST.in"],
         "otherfile.py": "",
@@ -878,18 +882,18 @@ class TestOverallBehaviour:
             "otherfile.py": "",
             "mypkg": {
                 "__init__.py": "",
-                "mod1.py": FLAT_LAYOUT["mypkg"]["mod1.py"],  # type: ignore
+                "mod1.py": FLAT_LAYOUT["mypkg"]["mod1.py"],
             },
-            "other": FLAT_LAYOUT["mypkg"]["subpackage"],  # type: ignore
+            "other": FLAT_LAYOUT["mypkg"]["subpackage"],
         },
         "namespace": {
             "pyproject.toml": dedent(PYPROJECT),
             "MANIFEST.in": EXAMPLE["MANIFEST.in"],
             "otherfile.py": "",
             "src": {
                 "mypkg": {
-                    "mod1.py": FLAT_LAYOUT["mypkg"]["mod1.py"],  # type: ignore
-                    "subpackage": FLAT_LAYOUT["mypkg"]["subpackage"],  # type: ignore
+                    "mod1.py": FLAT_LAYOUT["mypkg"]["mod1.py"],
+                    "subpackage": FLAT_LAYOUT["mypkg"]["subpackage"],
                 },
             },
         },