[Python] Remove deprecated TObject __eq__ pythonization

It was deprecated and scheduled for removal in 70e67f1.

Author: guitargeek

README/ReleaseNotes/v640/index.md

@@ -34,6 +34,8 @@ The following people have contributed to this new version:
 ## Deprecation and Removal
 * The `TH1K` class was removed. `TMath::KNNDensity` can be used in its stead.
 
+* The `TObject` equality operator pythonization (`TObject.__eq__`) that was deprecated in ROOT 6.38 and scheduled for removal in ROOT 6.40 is removed
+
 ## Build System
 
 ## Core Libraries

bindings/pyroot/pythonizations/CMakeLists.txt

@@ -134,7 +134,6 @@ set(cpp_sources
     src/RPyROOTApplication.cxx
     src/GenericPyz.cxx
     src/TClassPyz.cxx
-    src/TObjectPyz.cxx
     src/TTreePyz.cxx
     src/CPPInstancePyz.cxx
     src/TPyDispatcher.cxx

bindings/pyroot/pythonizations/python/ROOT/_pythonization/_tobject.py

@@ -8,7 +8,6 @@
 # For the list of contributors see $ROOTSYS/README/CREDITS.                    #
 ################################################################################
 
-from ROOT.libROOTPythonizations import AddTObjectEqNePyz
 import cppyy
 
 # Searching
@@ -27,22 +26,6 @@ def _contains(self, o):
 # Comparison operators
 
 
-def _eq(self, o):
-    import warnings
-
-    warnings.warn(
-        "\nTObject.__eq__ is deprecated and will be removed in ROOT 6.40."
-        "\n\nIt forwards to TObject::Equals(), which uses pointer comparison if"
-        " not overridden in derived classes."
-        "\nThis may be confusing, because people expect value comparisons."
-        "\nUse Pythons `is` for pointer comparison, or request/implement"
-        " `operator==` on the C++ side if you need value-based equality checks.",
-        FutureWarning,
-        stacklevel=2,
-    )
-    return self._cpp_eq(o)
-
-
 def _lt(self, o):
     if isinstance(o, cppyy.gbl.TObject):
         return self.Compare(o) == -1
@@ -78,9 +61,6 @@ def pythonize_tobject():
     klass.__contains__ = _contains
 
     # Inject comparison operators
-    AddTObjectEqNePyz(klass)
-    klass._cpp_eq = klass.__eq__
-    klass.__eq__ = _eq
     klass.__lt__ = _lt
     klass.__le__ = _le
     klass.__gt__ = _gt

bindings/pyroot/pythonizations/src/PyROOTModule.cxx

@@ -132,8 +132,6 @@ static PyMethodDef gPyROOTMethods[] = {
     (char *)"Allow to access branches as tree attributes"},
    {(char *)"AddTClassDynamicCastPyz", (PyCFunction)PyROOT::AddTClassDynamicCastPyz, METH_VARARGS,
     (char *)"Cast the void* returned by TClass::DynamicCast to the right type"},
-   {(char *)"AddTObjectEqNePyz", (PyCFunction)PyROOT::AddTObjectEqNePyz, METH_VARARGS,
-    (char *)"Add equality and inequality comparison operators to TObject"},
    {(char *)"BranchPyz", (PyCFunction)PyROOT::BranchPyz, METH_VARARGS,
     (char *)"Fully enable the use of TTree::Branch from Python"},
    {(char *)"AddPrettyPrintingPyz", (PyCFunction)PyROOT::AddPrettyPrintingPyz, METH_VARARGS,

bindings/pyroot/pythonizations/src/PyROOTPythonize.h

@@ -25,8 +25,6 @@ PyObject *BranchPyz(PyObject *self, PyObject *args);
 
 PyObject *AddTClassDynamicCastPyz(PyObject *self, PyObject *args);
 
-PyObject *AddTObjectEqNePyz(PyObject *self, PyObject *args);
-
 PyObject *CPPInstanceExpand(PyObject *self, PyObject *args);
 
 } // namespace PyROOT