Issue #18200: Update the stdlib (except tests) to use
ModuleNotFoundError.
diff --git a/Lib/distutils/dist.py b/Lib/distutils/dist.py
index f7fac08..11f6ff8 100644
--- a/Lib/distutils/dist.py
+++ b/Lib/distutils/dist.py
@@ -4,11 +4,11 @@
 being built/installed/distributed.
 """
 
-import sys, os, re
+import importlib, sys, os, re
 
 try:
     import warnings
-except ImportError:
+except ModuleNotFoundError:
     warnings = None
 
 from distutils.errors import *
@@ -788,9 +788,8 @@
             klass_name = command
 
             try:
-                __import__ (module_name)
-                module = sys.modules[module_name]
-            except ImportError:
+                module = importlib.import_module(module_name)
+            except ModuleNotFoundError:
                 continue
 
             try: