diff -r c730a41bbb9e -r aa2319888257 Preferences/ConfigurationPages/HelpViewersPage.py
--- a/Preferences/ConfigurationPages/HelpViewersPage.py Wed Dec 23 19:08:09 2015 +0100
+++ b/Preferences/ConfigurationPages/HelpViewersPage.py Fri Dec 25 14:03:57 2015 +0100
@@ -41,6 +41,15 @@
# set initial values
hvId = Preferences.getHelp("HelpViewerType")
+ # check availability of QtWebKit
+ try:
+ from PyQt5 import QtWebKit # __IGNORE_WARNING__
+ except ImportError:
+ # not available, reset help viewer to default
+ if hvId == 1:
+ hvId = Preferences.Prefs.helpDefaults["HelpViewerType"]
+ self.helpBrowserButton.setEnabled(False)
+
if hvId == 1:
self.helpBrowserButton.setChecked(True)
elif hvId == 2:
