mypy: Fix all func-returns-value

distutils/dir_util.py

@@ -57,10 +57,11 @@ def mkpath(name: pathlib.Path, mode=0o777, verbose=True, dry_run=False) -> None:
     if verbose and not name.is_dir():
         log.info("creating %s", name)
 
-    try:
-        dry_run or name.mkdir(mode=mode, parents=True, exist_ok=True)
-    except OSError as exc:
-        raise DistutilsFileError(f"could not create '{name}': {exc.args[-1]}")
+    if not dry_run:
+        try:
+            name.mkdir(mode=mode, parents=True, exist_ok=True)
+        except OSError as exc:
+            raise DistutilsFileError(f"could not create '{name}': {exc.args[-1]}")
 
 
 @mkpath.register

mypy.ini

@@ -16,20 +16,21 @@ disable_error_code =
 
 # local
 
+	# Code that is too dynamic using variable command names;
+	# and code that uses platform checks mypy doesn't understand
+	attr-defined,
+	# These reveal issues in distutils/_modified.py that should be fixed
+	return-value,
+	type-var,
 	# TODO: Resolve and re-enable these gradually
 	operator,
-	attr-defined,
 	arg-type,
 	assignment,
 	call-overload,
-	return-value,
 	index,
-	type-var,
-	func-returns-value,
 	union-attr,
 	str-bytes-safe,
 	misc,
-	has-type,
 
 # stdlib's test module is not typed on typeshed
 [mypy-test.*]