6.5.0
=====

Python 3.10.6
Qt 6.5.2 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 11.3.0)

model.data(0,0):  SelectionMode.SingleSelection 

initStyleOption QVariant(int, 1)
QVariant_CppToPython_QVariant QVariant(int, 1) Py int
VariantDelegate::displayText(): 1 <class 'int'> 

Traceback (most recent call last):
  File "/projects/pyside2339.py", line 25, in displayText
    assert isinstance(value, enum.Enum)  # this fails
AssertionError
initStyleOption QVariant(int, 1)
QVariant_CppToPython_QVariant QVariant(int, 1) Py int
VariantDelegate::displayText(): 1 <class 'int'> 

Traceback (most recent call last):
  File "/projects/pyside2339.py", line 25, in displayText
    assert isinstance(value, enum.Enum)  # this fails
AssertionError

6.2.6
=====

Python 3.10.6
Qt 6.2.6 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 10.3.1 20210422 (Red Hat 10.3.1-1)) [limited API]

model.data(0,0):  PySide6.QtWidgets.QAbstractItemView.SelectionMode.SingleSelection 

VariantDelegate::displayText(): PySide6.QtWidgets.QAbstractItemView.SelectionMode.SingleSelection <class 'PySide6.QtWidgets.QAbstractItemView.SelectionMode'> 

Traceback (most recent call last):
  File "/projects/pyside2339.py", line 25, in displayText
    assert isinstance(value, enum.Enum)  # this fails
AssertionError
VariantDelegate::displayText(): PySide6.QtWidgets.QAbstractItemView.SelectionMode.SingleSelection <class 'PySide6.QtWidgets.QAbstractItemView.SelectionMode'> 

Traceback (most recent call last):
  File "/projects/pyside2339.py", line 25, in displayText
    assert isinstance(value, enum.Enum)  # this fails
AssertionError