--- a/eric6/E5Gui/E5TabWidget.py	Sun Sep 01 17:44:33 2019 +0200
+++ b/eric6/E5Gui/E5TabWidget.py	Sun Sep 01 19:40:53 2019 +0200
@@ -13,8 +13,6 @@
 from PyQt5.QtGui import QDrag, QMovie
 from PyQt5.QtWidgets import QTabWidget, QTabBar, QApplication, QStyle, QLabel
 
-from Globals import qVersionTuple
-
 
 class E5WheelTabBar(QTabBar):
     """
@@ -37,10 +35,7 @@
         @param event reference to the wheel event (QWheelEvent)
         """
         try:
-            if qVersionTuple() >= (5, 0, 0):
-                delta = event.angleDelta().y()
-            else:
-                delta = event.delta()
+            delta = event.angleDelta().y()
             if delta > 0:
                 self._tabWidget.prevTab()
             elif delta < 0: