diff --git a/adodbapi/adodbapi.py b/adodbapi/adodbapi.py
index 0f84a890a..4e85bc525 100644
--- a/adodbapi/adodbapi.py
+++ b/adodbapi/adodbapi.py
@@ -418,9 +418,8 @@ def __setattr__(self, name, value):
                     f"paramstyle={value!r} not in:{api.accepted_paramstyles!r}",
                 )
         elif name == "variantConversions":
-            value = copy.copy(
-                value
-            )  # make a new copy -- no changes in the default, please
+            # make a new copy -- no changes in the default, please
+            value = copy.copy(value)
         object.__setattr__(self, name, value)
 
     def __getattr__(self, item):
diff --git a/adodbapi/apibase.py b/adodbapi/apibase.py
index 3231f78ac..749c378d3 100644
--- a/adodbapi/apibase.py
+++ b/adodbapi/apibase.py
@@ -5,11 +5,15 @@
 * http://sourceforge.net/projects/adodbapi
 """
 
+from __future__ import annotations
+
 import datetime
 import decimal
 import numbers
 import sys
 import time
+from collections.abc import Callable, Iterable, Mapping
+from typing import Dict
 
 # noinspection PyUnresolvedReferences
 from . import ado_consts as adc
@@ -461,20 +465,25 @@ def convert_to_python(variant, func):  # convert DB value into Python value
     return func(variant)  # call the appropriate conversion function
 
 
-class MultiMap(dict):  # builds a dictionary from {(sequence,of,keys) : function}
-    """A dictionary of ado.type : function -- but you can set multiple items by passing a sequence of keys"""
+class MultiMap(Dict[int, Callable[[object], object]]):
+    # builds a dictionary from {(iterable,of,keys) : function}
+    """A dictionary of ado.type : function
+    -- but you can set multiple items by passing an iterable of keys"""
 
     # useful for defining conversion functions for groups of similar data types.
-    def __init__(self, aDict):
-        for k, v in list(aDict.items()):
+    def __init__(self, aDict: Mapping[Iterable[int] | int, Callable[[object], object]]):
+        for k, v in aDict.items():
             self[k] = v  # we must call __setitem__
 
-    def __setitem__(self, adoType, cvtFn):
-        "set a single item, or a whole sequence of items"
-        try:  # user passed us a sequence, set them individually
+    def __setitem__(
+        self, adoType: Iterable[int] | int, cvtFn: Callable[[object], object]
+    ):
+        "set a single item, or a whole iterable of items"
+        if isinstance(adoType, Iterable):
+            # user passed us an iterable, set them individually
             for type in adoType:
                 dict.__setitem__(self, type, cvtFn)
-        except TypeError:  # a single value fails attempt to iterate
+        else:
             dict.__setitem__(self, adoType, cvtFn)
 
 
diff --git a/adodbapi/setup.py b/adodbapi/setup.py
index f6b274661..ac796d371 100644
--- a/adodbapi/setup.py
+++ b/adodbapi/setup.py
@@ -3,20 +3,6 @@
 Adodbapi can be run on CPython 3.5 and later.
 """
 
-CLASSIFIERS = """\
-Development Status :: 5 - Production/Stable
-Intended Audience :: Developers
-License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)
-Operating System :: Microsoft :: Windows
-Operating System :: POSIX :: Linux
-Programming Language :: Python
-Programming Language :: Python :: 3
-Programming Language :: SQL
-Topic :: Software Development
-Topic :: Software Development :: Libraries :: Python Modules
-Topic :: Database
-"""
-
 NAME = "adodbapi"
 MAINTAINER = "Vernon Cole"
 MAINTAINER_EMAIL = "vernondcole@gmail.com"
@@ -25,7 +11,19 @@
 )
 URL = "http://sourceforge.net/projects/adodbapi"
 LICENSE = "LGPL"
-CLASSIFIERS = filter(None, CLASSIFIERS.split("\n"))
+CLASSIFIERS = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)",
+    "Operating System :: Microsoft :: Windows",
+    "Operating System :: POSIX :: Linux",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: SQL",
+    "Topic :: Software Development",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Topic :: Database",
+]
 AUTHOR = "Henrik Ekelund, Vernon Cole, et.al."
 AUTHOR_EMAIL = "vernondcole@gmail.com"
 PLATFORMS = ["Windows", "Linux"]
diff --git a/mypy.ini b/mypy.ini
index eb8e23ae9..a93198a2f 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -40,8 +40,6 @@ exclude = (?x)(
           | ^Pythonwin/Scintilla/
           ; Forked IDLE extensions predating Python 2.3. They now live in idlelib in https://github.com/python/cpython/tree/main/Lib/idlelib
           | ^Pythonwin/pywin/idle/
-          ; TODO: adodbapi should be updated and fixed separately
-          | ^adodbapi/
           ; TODO: Ignoring non-public APIs until all public API is typed
           | ([Tt]est|[Dd]emos?)/
           )
diff --git a/pyrightconfig.json b/pyrightconfig.json
index 356d749ba..bc3c26fbc 100644
--- a/pyrightconfig.json
+++ b/pyrightconfig.json
@@ -16,8 +16,6 @@
     "**/test/",
     "**/Demos/",
     "**/demo/",
-    // TODO: adodbapi should be updated and fixed separately
-    "adodbapi/",
   ],
   // Packages that will be accessible globally.
   // Setting this makes pyright use the repo's code for those modules instead of typeshed or pywin32 in site-packages