diff --git a/distutils/archive_util.py b/distutils/archive_util.py
index d860f552..08ff960a 100644
--- a/distutils/archive_util.py
+++ b/distutils/archive_util.py
@@ -6,6 +6,7 @@
 from __future__ import annotations
 
 import os
+from collections.abc import Callable
 from typing import Literal, overload
 
 try:
@@ -116,7 +117,10 @@ def _set_uid_gid(tarinfo):
         return tarinfo
 
     if not dry_run:
-        tar = tarfile.open(archive_name, f'w|{tar_compression[compress]}')
+        tar = tarfile.open(
+            archive_name,
+            f'w|{tar_compression[compress]}',  # type: ignore[call-overload] # Typeshed doesn't allow non-literal string here
+        )
         try:
             tar.add(base_dir, filter=_set_uid_gid)
         finally:
@@ -191,7 +195,9 @@ def make_zipfile(  # noqa: C901
     return zip_filename
 
 
-ARCHIVE_FORMATS = {
+ARCHIVE_FORMATS: dict[
+    str, tuple[Callable[..., str], list[tuple[str, str | None]], str]
+] = {
     'gztar': (make_tarball, [('compress', 'gzip')], "gzip'ed tar-file"),
     'bztar': (make_tarball, [('compress', 'bzip2')], "bzip2'ed tar-file"),
     'xztar': (make_tarball, [('compress', 'xz')], "xz'ed tar-file"),
diff --git a/distutils/dist.py b/distutils/dist.py
index b9552a8b..6b6c011c 100644
--- a/distutils/dist.py
+++ b/distutils/dist.py
@@ -865,9 +865,7 @@ def get_command_obj(
         self, command: str, create: Literal[True] = True
     ) -> Command: ...
     @overload
-    def get_command_obj(
-        self, command: str, create: Literal[False]
-    ) -> Command | None: ...
+    def get_command_obj(self, command: str, create: bool) -> Command | None: ...
     def get_command_obj(self, command: str, create: bool = True) -> Command | None:
         """Return the command object for 'command'.  Normally this object
         is cached on a previous call to 'get_command_obj()'; if no command
diff --git a/distutils/filelist.py b/distutils/filelist.py
index 70dc0fde..8c76a5c6 100644
--- a/distutils/filelist.py
+++ b/distutils/filelist.py
@@ -200,7 +200,7 @@ def process_template_line(self, line: str) -> None:  # noqa: C901
     @overload
     def include_pattern(
         self,
-        pattern: str,
+        pattern: str | None,
         anchor: bool = True,
         prefix: str | None = None,
         is_regex: Literal[False] = False,
@@ -224,7 +224,7 @@ def include_pattern(
     ) -> bool: ...
     def include_pattern(
         self,
-        pattern: str | re.Pattern,
+        pattern: str | re.Pattern | None,
         anchor: bool = True,
         prefix: str | None = None,
         is_regex: bool = False,
@@ -272,7 +272,7 @@ def include_pattern(
     @overload
     def exclude_pattern(
         self,
-        pattern: str,
+        pattern: str | None,
         anchor: bool = True,
         prefix: str | None = None,
         is_regex: Literal[False] = False,
@@ -296,7 +296,7 @@ def exclude_pattern(
     ) -> bool: ...
     def exclude_pattern(
         self,
-        pattern: str | re.Pattern,
+        pattern: str | re.Pattern | None,
         anchor: bool = True,
         prefix: str | None = None,
         is_regex: bool = False,
diff --git a/mypy.ini b/mypy.ini
index 146222a5..ed31d0cf 100644
--- a/mypy.ini
+++ b/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.*]