Remap setSectionResizeMode to Qt 4

CAVEATS.md

@@ -216,49 +216,3 @@ Traceback (most recent call last):
 ...
 TypeError: ...
 ```
-
-
-#### QtWidgets.QHeaderView.setResizeMode
-
-`setResizeMode` was [renamed](http://doc.qt.io/qt-5/qheaderview.html#setSectionResizeMode) `setSectionResizeMode` in Qt 5.
-
-```python
-# PySide2
->>> from Qt import QtWidgets
->>> app = QtWidgets.QApplication(sys.argv)
->>> view = QtWidgets.QTreeWidget()
->>> header = view.header()
->>> header.setResizeMode(QtWidgets.QHeaderView.Fixed)
-Traceback (most recent call last):
-...
-AttributeError: 'PySide2.QtWidgets.QHeaderView' object has no attribute 'setResizeMode'
-```
-
-```python
-# PySide
->>> from Qt import QtWidgets
->>> app = QtWidgets.QApplication(sys.argv)
->>> view = QtWidgets.QTreeWidget()
->>> header = view.header()
->>> header.setSectionResizeMode(QtWidgets.QHeaderView.Fixed)
-Traceback (most recent call last):
-...
-AttributeError: 'PySide.QtGui.QHeaderView' object has no attribute 'setSectionResizeMode'
-```
-
-##### Workaround
-
-Use a conditional.
-
-```python
-# PySide2
->>> from Qt import QtWidgets, __binding__
->>> app = QtWidgets.QApplication(sys.argv)
->>> view = QtWidgets.QTreeWidget()
->>> header = view.header()
->>> if __binding__ in ("PyQt4", "PySide"):
-...   header.setResizeMode(QtWidgets.QHeaderView.Fixed)
-... else:
-...   header.setSectionResizeMode(QtWidgets.QHeaderView.Fixed)
-```
-

Qt.py

@@ -69,6 +69,8 @@ def _pyqt4():
     PyQt4.QtCore.Property = PyQt4.QtCore.pyqtProperty
     PyQt4.QtCore.QItemSelection = PyQt4.QtGui.QItemSelection
     PyQt4.QtCore.QItemSelectionModel = PyQt4.QtGui.QItemSelectionModel
+    PyQt4.QtWidgets.QHeaderView.setSectionResizeMode = \
+        PyQt4.QtWidgets.QHeaderView.setResizeMode
 
     try:
         from PyQt4 import QtWebKit
@@ -115,6 +117,8 @@ def _pyside():
     PySide.QtCore.QStringListModel = PySide.QtGui.QStringListModel
     PySide.QtCore.QItemSelection = PySide.QtGui.QItemSelection
     PySide.QtCore.QItemSelectionModel = PySide.QtGui.QItemSelectionModel
+    PySide.QtWidgets.QHeaderView.setSectionResizeMode = \
+        PySide.QtWidgets.QHeaderView.setResizeMode
 
     try:
         from PySide import QtWebKit

tests.py

@@ -199,6 +199,27 @@ def test_vendoring():
     ) == 0
 
 
+def test_qheaderview_setsectionresizemode():
+    """setResizeMode was renamed setSectionResizeMode in Qt 5"""
+
+    with pyside():
+        from PySide import QtGui
+
+        # Qt.py doesn't replace an existing member.
+        assert not hasattr(QtGui.QHeaderView, "setSectionResizeMode")
+
+        import sys
+        from Qt import QtWidgets
+        app = QtWidgets.QApplication(sys.argv)
+        widget = QtWidgets.QTreeView()
+        qheaderview = widget.header()
+
+        # This does not raise an AttributeError
+        qheaderview.setSectionResizeMode(qheaderview.Fixed)
+
+        app.quit()
+
+
 if PYTHON == 2:
     def test_sip_api_already_set():
         """Raise ImportError if sip API v1 was already set (Python 2.x only)"""