RecursionError caused by softenum on Python 3.13 / 3.14

[ostefano]

There is no repository for softenum, hence the issue here

[ostefano]

This is blocking adding support to Python 3.13 and 3.14 to misp-modules (MISP/misp-modules#776)

[ostefano]

Let me know if this works:

@@ class Softenummeta(type):
         # Creating response
-        enum_members = {key: classdict[key] for key in classdict}
+        enum_members = {
+            key: classdict[key]
+            for key in classdict
+            if not (key.startswith("__") and key.endswith("__"))
+        }
 
         # Avoiding forbidden
         for key in forbidden:
             if key in enum_members:
                 del enum_members[key]

@@ class Softenum(metaclass=Softenummeta):
     def __new__(cls, value):
-        if type(value) is cls:
-            return value
-        elif isinstance(value, cls):
-            return value
-        else:
-            return cls(value)
+      if type(value) is cls:
+            return value
+      elif isinstance(value, cls):
+            return value
+      return object.__new__(cls)