From f0a9408e70056051f2c729d5960e318ddfea4450 Mon Sep 17 00:00:00 2001
From: Christoph Fink <christoph.fink@helsinki.fi>
Date: Wed, 21 Nov 2018 15:18:38 +0200
Subject: [PATCH] issue #18

---
 cartogram3.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cartogram3.py b/cartogram3.py
index c2b724b..6602179 100644
--- a/cartogram3.py
+++ b/cartogram3.py
@@ -314,7 +314,7 @@ def run(self):
 
             # remember the input layer’s style
             self.inputLayerStyle = QDomDocument()
-            self.inputLayer.exportNamedStyle(self.inputLayerStyle, None)
+            self.inputLayer.exportNamedStyle(self.inputLayerStyle)
 
             # set up all widgets for status reporting
             self.progressBar = QProgressBar()