1 files changed, 25 insertions, 11 deletions
diff --git a/third_party/python/setuptools/pkg_resources/extern/__init__.py b/third_party/python/setuptools/pkg_resources/extern/__init__.py
index 4dc3beb2fa..948bcc6094 100644
--- a/third_party/python/setuptools/pkg_resources/extern/__init__.py
+++ b/third_party/python/setuptools/pkg_resources/extern/__init__.py
@@ -1,3 +1,4 @@
+import importlib.util
 import sys
 
 
@@ -20,17 +21,10 @@ class VendorImporter:
         yield self.vendor_pkg + '.'
         yield ''
 
-    def find_module(self, fullname, path=None):
-        """
-        Return self when fullname starts with root_name and the
-        target module is one vendored through this importer.
-        """
+    def _module_matches_namespace(self, fullname):
+        """Figure out if the target module is vendored."""
         root, base, target = fullname.partition(self.root_name + '.')
-        if root:
-            return
-        if not any(map(target.startswith, self.vendored_names)):
-            return
-        return self
+        return not root and any(map(target.startswith, self.vendored_names))
 
     def load_module(self, fullname):
         """
@@ -54,6 +48,20 @@ class VendorImporter:
                 "distribution.".format(**locals())
             )
 
+    def create_module(self, spec):
+        return self.load_module(spec.name)
+
+    def exec_module(self, module):
+        pass
+
+    def find_spec(self, fullname, path=None, target=None):
+        """Return a module spec for vendored names."""
+        return (
+            importlib.util.spec_from_loader(fullname, self)
+            if self._module_matches_namespace(fullname)
+            else None
+        )
+
     def install(self):
         """
         Install this importer into sys.meta_path if not already present.
@@ -62,5 +70,11 @@ class VendorImporter:
             sys.meta_path.append(self)
 
 
-names = 'packaging', 'pyparsing', 'appdirs'
+names = (
+    'packaging',
+    'platformdirs',
+    'jaraco',
+    'importlib_resources',
+    'more_itertools',
+)
 VendorImporter(__name__, names).install()