Added class attributes access trough DynamicClassProperty (first atte…

Replaced dynamic attributes Enum.name and .value to instance attrs
python · MrMrRobat · MrMrRobat · MrMrRobat · Dec 20, 2019 · MrMrRobat
diff --git a/Lib/enum.py b/Lib/enum.py
        super().__setitem__(key, value)

+    @property
diff --git a/Lib/enum.py b/Lib/enum.py
@@ -369,7 +366,7 @@ def __members__(cls):
        return MappingProxyType(cls._member_map_)

    def __repr__(cls):
-        return "<enum %r>" % cls.__name__
+        return f'<enum {cls.__name__!r}'
diff --git a/Lib/re.py b/Lib/re.py
-        value = self._value_
+        if self.name is not None:
+            return f're.{self.name}'
+        value = self.value
diff --git a/Lib/enum.py b/Lib/enum.py
                              for k, v in c.__dict__.items()
                              if isinstance(v, DynamicClassAttribute)}

        # Reverse value->name map for hashable values.
        enum_class._value2member_map_ = {}

+        # used to speedup __str__, __repr__ and __invert__ calls when applicable
diff --git a/Lib/enum.py b/Lib/enum.py
+        # TODO: Maybe remove try/except block and setting __context__ in this case?
        try:
-            exc = None
            result = cls._missing_(value)
        except Exception as e:
-            exc = e
-            result = None
+            # Huge boost for standard enum
+            if cls._missing_ is Enum._missing_:
+                raise
+            else:
+                e.__context__ = ValueError(f'{value!r} is not a valid {cls.__qualname__}')
+                raise