diff --git a/src/ifcopenshell-python/ifcopenshell/entity_instance.py b/src/ifcopenshell-python/ifcopenshell/entity_instance.py
index 4483f332d3..30e41ba7c9 100644
--- a/src/ifcopenshell-python/ifcopenshell/entity_instance.py
+++ b/src/ifcopenshell-python/ifcopenshell/entity_instance.py
@@ -208,21 +208,27 @@ class entity_instance_mixin:
 
         return value
 
-    # TODO: dead code? Since overridden by `__eq__` defined on `entity_instance`.
-    def __eq__(self, other: entity_instance_mixin) -> bool:
+    def __eq__(self, other: object) -> bool:
         if not isinstance(other, entity_instance_mixin):
-            if not self.is_entity():
-                return self[0] == other
-            else:
-                return False
-        else:
-            raise NotImplementedError
+            return self[0] == other if not self.is_entity() else False
 
-    def __ne__(self, other: entity_instance_mixin) -> bool:
-        if other is None or not isinstance(other, entity_instance_mixin):
+        if self.identity() == other.identity():
             return True
-        else:
-            raise NotImplementedError
+
+        if self.is_a(True) != other.is_a(True):
+            return False
+
+        if self.file != other.file or not self.is_entity():
+            return self.get_info(
+                recursive=True, include_identifier=False
+            ) == other.get_info(
+                recursive=True, include_identifier=False
+            )
+
+        return False
+
+    def __ne__(self, other: object) -> bool:
+        return not self == other
 
     def is_entity(self) -> bool:
         """Tests whether the instance is an entity type as opposed to a simple data type.
diff --git a/src/ifcwrap/IfcParseWrapper.i b/src/ifcwrap/IfcParseWrapper.i
index 4a86c9a932..6b9be95f59 100644
--- a/src/ifcwrap/IfcParseWrapper.i
+++ b/src/ifcwrap/IfcParseWrapper.i
@@ -410,66 +410,6 @@ private:
 	%}
 }
 
-%{
-// Shared by __eq__/__ne__ below - %extend methods can't call each other directly.
-// Initially was added as __eq__, but swig doesn't allow calling one extended method from another.
-static bool express_Base_equals(const express::Base* self, const express::Base* other) {
-	// This logic is not perfect and is not fully consistent with __hash__
-	if (!other) {
-		return false;
-	} else if (self->identity() == other->identity()) {
-		return true;
-	} else if (&self->declaration() != &other->declaration()) {
-		return false;
-	} else if ((self->file() != other->file()) || (self->declaration().as_entity() == nullptr)) {
-		// PyGILState_STATE gil = PyGILState_Ensure();
-		// @todo get_info is actually implemented in C++, so we try to call it directly
-		bool result = false;
-		PyObject *py_self  = SWIG_NewPointerObj(SWIG_as_voidptr(self),
-                                            SWIGTYPE_p_express__Base, 0);
-		PyObject *py_other = SWIG_NewPointerObj(SWIG_as_voidptr(other),
-                            SWIGTYPE_p_express__Base, 0);
-		if (py_self && py_other) {
-			PyObject *args = PyTuple_New(0);
-
-			PyObject *kwargs = PyDict_New();
-			PyDict_SetItemString(kwargs, "recursive", Py_True);
-			PyDict_SetItemString(kwargs, "include_identifier", Py_False);
-
-			PyObject *m1 = PyObject_GetAttrString(py_self,  "get_info");
-			PyObject *m2 = PyObject_GetAttrString(py_other, "get_info");
-
-			PyObject *i1 = (m1 ? PyObject_Call(m1, args, kwargs) : nullptr);
-			PyObject *i2 = (m2 ? PyObject_Call(m2, args, kwargs) : nullptr);
-
-			if (i1 && i2) {
-				int eq = PyObject_RichCompareBool(i1, i2, Py_EQ);
-				result = (eq == 1);
-			} else {
-				// get_info missing or threw; treat as not equal (and clear Python error).
-				PyErr_Clear();
-			}
-
-			Py_XDECREF(i1);
-			Py_XDECREF(i2);
-			Py_XDECREF(m1);
-			Py_XDECREF(m2);
-			Py_DECREF(kwargs);
-			Py_DECREF(args);
-		} else {
-			PyErr_Clear();
-		}
-
-		Py_XDECREF(py_self);
-		Py_XDECREF(py_other);
-		// PyGILState_Release(gil);
-		return result;
-	} else {
-		return false;
-	}
-}
-%}
-
 %extend express::Base {
 
 	// 0 = not found
@@ -589,18 +529,6 @@ static bool express_Base_equals(const express::Base* self, const express::Base*
 		return $self->get_attribute_value((unsigned)i);
 	}
 
-	// `other` is a pointer, not a reference, so Python `None` converts to
-	// nullptr instead of SWIG raising a null-reference error before this
-	// body runs.
-	bool __eq__(const express::Base* other) const {
-		return express_Base_equals($self, other);
-	}
-
-	// Override operator!= to support None or other data types in `other`.
-	bool __ne__(const express::Base* other) const {
-		return !express_Base_equals($self, other);
-	}
-
 	size_t __hash__() const {
 		return std::hash<uint32_t>{}(self->identity());
 	}