ssl, sysconfig: fix issues with defaults (#9507)

- ssl._create_unverified_context allows None since 3.10:
  https://github.com/python/cpython/commit/2875c603b2a7691b55c2046aca54831c91efda8e#diff-f6439be9c66350dde4c35dbeea0352c96cc970ba12b0478f6ae36f10725bd8c5
- sysconfig.is_python_build ignores its argument since 3.11:
  https://github.com/python/cpython/commit/067597522a9002f3b8aff7f46033f10acb2381e4
  (was backported into 3.11)

stdlib/ssl.pyi

@@ -63,18 +63,34 @@ def create_default_context(
     capath: StrOrBytesPath | None = ...,
     cadata: str | ReadableBuffer | None = ...,
 ) -> SSLContext: ...
-def _create_unverified_context(
-    protocol: int = ...,
-    *,
-    cert_reqs: int = ...,
-    check_hostname: bool = ...,
-    purpose: Purpose = ...,
-    certfile: StrOrBytesPath | None = ...,
-    keyfile: StrOrBytesPath | None = ...,
-    cafile: StrOrBytesPath | None = ...,
-    capath: StrOrBytesPath | None = ...,
-    cadata: str | ReadableBuffer | None = ...,
-) -> SSLContext: ...
+
+if sys.version_info >= (3, 10):
+    def _create_unverified_context(
+        protocol: int | None = None,
+        *,
+        cert_reqs: int = ...,
+        check_hostname: bool = ...,
+        purpose: Purpose = ...,
+        certfile: StrOrBytesPath | None = ...,
+        keyfile: StrOrBytesPath | None = ...,
+        cafile: StrOrBytesPath | None = ...,
+        capath: StrOrBytesPath | None = ...,
+        cadata: str | ReadableBuffer | None = ...,
+    ) -> SSLContext: ...
+
+else:
+    def _create_unverified_context(
+        protocol: int = ...,
+        *,
+        cert_reqs: int = ...,
+        check_hostname: bool = ...,
+        purpose: Purpose = ...,
+        certfile: StrOrBytesPath | None = ...,
+        keyfile: StrOrBytesPath | None = ...,
+        cafile: StrOrBytesPath | None = ...,
+        capath: StrOrBytesPath | None = ...,
+        cadata: str | ReadableBuffer | None = ...,
+    ) -> SSLContext: ...
 
 _create_default_https_context: Callable[..., SSLContext]
 

stdlib/sysconfig.pyi

@@ -32,7 +32,13 @@ def get_path(name: str, scheme: str = ..., vars: dict[str, Any] | None = ..., ex
 def get_paths(scheme: str = ..., vars: dict[str, Any] | None = ..., expand: bool = ...) -> dict[str, str]: ...
 def get_python_version() -> str: ...
 def get_platform() -> str: ...
-def is_python_build(check_home: bool = ...) -> bool: ...
+
+if sys.version_info >= (3, 11):
+    def is_python_build(check_home: object = None) -> bool: ...
+
+else:
+    def is_python_build(check_home: bool = False) -> bool: ...
+
 def parse_config_h(fp: IO[Any], vars: dict[str, Any] | None = ...) -> dict[str, Any]: ...
 def get_config_h_filename() -> str: ...
 def get_makefile_filename() -> str: ...