Unicode utf8 is deprecated

Qt.py

@@ -39,6 +39,16 @@ def _pyqt5():
     PyQt5.__qt_version__ = PyQt5.QtCore.QT_VERSION_STR
     PyQt5.load_ui = pyqt5_load_ui
 
+    # provide mocked UnicodeUTF8 For backward compatibility
+    PyQt5.QtWidgets.QApplication.UnicodeUTF8 = None
+
+    old_translate_fn = PyQt5.QtWidgets.QApplication.translate
+
+    def translate(context, key, disambiguation=None, encoding=None, n=0):
+        return old_translate_fn(context, key, disambiguation, n)
+
+    PyQt5.QtWidgets.QApplication.translate = staticmethod(translate)
+
     return PyQt5
 
 
@@ -101,6 +111,16 @@ def _pyside2():
     PySide2.__qt_version__ = PySide2.QtCore.qVersion()
     PySide2.load_ui = pyside2_load_ui
 
+    # provide mocked UnicodeUTF8 For backward compatibility
+    PySide2.QtWidgets.QApplication.UnicodeUTF8 = None
+
+    old_translate_fn = PySide2.QtWidgets.QApplication.translate
+
+    def translate(context, key, disambiguation=None, encoding=None, n=0):
+        return old_translate_fn(context, key, disambiguation, n)
+
+    PySide2.QtWidgets.QApplication.translate = staticmethod(translate)
+
     return PySide2
 
 

tests.py

@@ -208,3 +208,81 @@ def test_sip_api_already_set():
             import sip
             sip.setapi("QString", 1)
             assert_raises(ImportError, __import__, "Qt")
+
+
+def test_translate_and_UnicodeUTF8_in_pyside():
+    with pyside():
+        from Qt import QtWidgets
+
+        # this does exist in PySide
+        assert QtWidgets.QApplication.UnicodeUTF8 is not None
+
+        # use patched method with old arguments
+        QtWidgets.QApplication.translate(
+            'Href_Gui',
+            'Text',
+            0,
+            QtWidgets.QApplication.UnicodeUTF8
+        )
+
+
+def test_translate_and_UnicodeUTF8_in_pyqt4():
+    with pyqt4():
+        from Qt import QtWidgets
+
+        # this does exist in PyQt4
+        assert QtWidgets.QApplication.UnicodeUTF8 is not None
+
+        # use patched method with old arguments
+        QtWidgets.QApplication.translate(
+            'Href_Gui',
+            'Text',
+            0,
+            QtWidgets.QApplication.UnicodeUTF8
+        )
+
+
+def test_translate_and_UnicodeUTF8_in_pyside2():
+    with pyside2():
+        from Qt import QtWidgets
+
+        # this does not exist in PySide2 by default
+        assert QtWidgets.QApplication.UnicodeUTF8 is None
+
+        # use patched method with old arguments
+        QtWidgets.QApplication.translate(
+            'Href_Gui',
+            'Text',
+            0,
+            QtWidgets.QApplication.UnicodeUTF8
+        )
+
+        # use patched method with new arguments
+        QtWidgets.QApplication.translate(
+            'SomeText',
+            'Form',
+            0,
+        )
+
+
+def test_translate_and_UnicodeUTF8_in_PyQt5():
+    with pyqt5():
+        from Qt import QtWidgets
+
+        # this does not exist in PyQt5 by default
+        assert QtWidgets.QApplication.UnicodeUTF8 is None
+
+        # use patched method with old arguments
+        QtWidgets.QApplication.translate(
+            'SomeText',
+            'Form',
+            None,
+            QtWidgets.QApplication.UnicodeUTF8
+        )
+
+        # use patched method with new arguments
+        QtWidgets.QApplication.translate(
+            'SomeText',
+            'Form',
+            None,
+        )