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Diffstat (limited to 'sources/pyside2/doc')
| -rw-r--r-- | sources/pyside2/doc/considerations.rst | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sources/pyside2/doc/considerations.rst b/sources/pyside2/doc/considerations.rst index f05d929b5..b5eae7d86 100644 --- a/sources/pyside2/doc/considerations.rst +++ b/sources/pyside2/doc/considerations.rst @@ -133,3 +133,17 @@ Abandoned Alternative We also tried an alternative implementation with a ``qApp()`` function that was more *pythonic* and problem free, but many people liked the ``qApp`` macro better for its brevity, so here it is. + + +Rich Comparison +~~~~~~~~~~~~~~~ + +There was a long-standing bug in the ``tp_richcompare`` implementation of PySide classes. + +* When a class did not implement it, the default implementation of ``object`` is used. + This implements ``==`` and ``!=`` like the ``is`` operator. + +* When a class implements only a single function like ``<``, then the default implementation + was disabled, and expressions like ``obj in sequence`` failed with ``NotImplemented``. + +This oversight was fixed in version 5.15.1 . |