[bugfix] error when there is nothing to plot

2018-04-23 13:33:05 +02:00
parent 0320ad67b9
commit 36a4f0df8a
2 changed files with 7 additions and 2 deletions
--- a/pylot/core/util/widgets.py
+++ b/pylot/core/util/widgets.py
@@ -447,6 +447,10 @@ class WaveformWidgetPG(QtGui.QWidget):
        self.orig_parent = parent
        # attribute plotdict is a dictionary connecting position and a name
        self.plotdict = dict()
+        # init labels
+        self.xlabel = None
+        self.ylabel = None
+        self.title = None
        # create plot
        self.main_layout = QtGui.QVBoxLayout()
        self.label_layout = QtGui.QHBoxLayout()