Prefer a cached property, as the property is likely to be retrieved at least 3 times (on construction and for module:attr access).

Author: jaraco

importlib_metadata/__init__.py

@@ -232,7 +232,7 @@ def attr(self) -> str:
     def extras(self) -> List[str]:
         return re.findall(r'\w+', self._match.extras or '')
 
-    @property
+    @functools.cached_property
     def _match(self) -> _EntryPointMatch:
         match = self.pattern.match(self.value)
         if not match: