fix

f1577025 · Alexander Kryklia · c2dec3fb · f1577025
Commit f1577025 authored Jan 09, 2013 by Alexander Kryklia
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Showing with 2 additions and 1 deletions

common/lib/capa/capa/inputtypes.py
+2 -1

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--- a/common/lib/capa/capa/inputtypes.py
+++ b/common/lib/capa/capa/inputtypes.py
@@ -866,7 +866,8 @@ class DragAndDropInput(InputTypeBase):
                                                self.xml.iterchildren('target')]

        # custom background color for labels:
-        label_bg_color = Attribute('label_bg_color').parse_from_xml(self.xml)
+        label_bg_color = Attribute('label_bg_color',
+                                   default=None).parse_from_xml(self.xml)
        if label_bg_color:
            to_js['label_bg_color'] = label_bg_color