From 287e083b0ab0a41e510e3949620d0d93afbe75b8 Mon Sep 17 00:00:00 2001
From: "Veronica K. B. Olsen" <1619840+vkbo@users.noreply.github.com>
Date: Sat, 15 Aug 2020 20:49:35 +0200
Subject: [PATCH] QSysInfo.kernelversion doesn't exist in older versions of Qt

---
 nw/error.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/nw/error.py b/nw/error.py
index 4c3fef17..ec49dd4b 100644
--- a/nw/error.py
+++ b/nw/error.py
@@ -42,6 +42,11 @@ def formatHtmlErrMsg(exType, exValue, exTrace):
                 nIndent = len(trLine) - len(stripLine)
                 fmtTrace += "&nbsp;"*nIndent + stripLine + "<br>"
 
+        try:
+            kernelVersion = QSysInfo.kernelVersion()
+        except Exception:
+            kernelVersion = "Unknown"
+
         theMessage = (
             "<p>Please report this error by submitting an issue report on "
             "GitHub, providing a description and this error message. "
@@ -53,7 +58,7 @@ def formatHtmlErrMsg(exType, exValue, exTrace):
         ).format(
             nwVersion = __version__,
             osType    = sys.platform,
-            osKernel  = QSysInfo.kernelVersion(),
+            osKernel  = kernelVersion,
             pyVersion = sys.version.split()[0],
             pyHexVer  = sys.hexversion,
             qtVers    = QT_VERSION_STR,