setarr is a numpy array its not safe to cast that to a bool (#818)

microsoft · Oct 26, 2017 · 3d7baef · 3d7baef
1 parent 9d01779
commit 3d7baef
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/qcodes/plots/pyqtgraph.py b/qcodes/plots/pyqtgraph.py
@@ -549,7 +549,7 @@ def fixUnitScaling(self, startranges: Optional[Dict[str, Dict[str, Union[float,i
                     setarr = getattr(self.traces[i]['config'][axis], 'ndarray', None)
                     arrmin = None
                     arrmax = None
-                    if setarr and not np.all(np.isnan(setarr)):
+                    if setarr is not None and not np.all(np.isnan(setarr)):
                         arrmax = setarr.max()
                         arrmin = setarr.min()
                     elif startranges is not None: