towards epicsSwissmxSim.py ...

epics_widgets/MotorTweak.py

@@ -324,7 +324,13 @@ class MotorTweak(QWidget, Ui_MotorTweak):
         short_name=self.short_name,
         precision=m.PREC,
         units=m.units)
-    self.label.setText(target[self._label_style].format(rbv=m.readback))
+    try:
+      self.label.setText(target[self._label_style].format(rbv=m.readback))
+    except ValueError as e:
+      _log.error(e)
+      print(self._label_style)
+      print(m.readback)
+      print(m)
 
   def paintEvent(self, e):
     qp = QPainter()