Mark regex

nyalldawson · nyalldawson · commit 6e7c07bc8676 · 2018-06-22T13:37:58.000+10:00
diff --git a/python/plugins/processing/algs/qgis/ui/RasterCalculatorWidgets.py b/python/plugins/processing/algs/qgis/ui/RasterCalculatorWidgets.py
@@ -86,7 +86,7 @@ def __init__(self, expression, options):
         self.filledExpression = None
         self.options = options
         self.expression = expression
-        self.variables = set(re.findall('\[.*?\]', expression))
+        self.variables = set(re.findall(r'\[.*?\]', expression))
         self.comboBoxes = {}
         for variable in self.variables:
             label = QLabel(variable[1:-1])
