fix: catch positions is None

2026-05-27 10:14:49 +02:00
parent 617cca71a5
commit 8ddf67e817
1 changed files with 4 additions and 1 deletions
@@ -112,7 +112,10 @@ class Mo1Bragg(PSIDeviceBase, Mo1BraggPositioner):

        scan_name = self.scan_parameters.scan_name
        if self._check_if_scan_name_is_valid(self.scan_parameters):
-            start, stop = self.scan_parameters.positions if len(self.scan_parameters.positions) == 2 else (None, None)
+            if self.scan_parameters.positions:
+                start, stop = self.scan_parameters.positions if len(self.scan_parameters.positions) == 2 else (None, None)
+            else:
+                start, stop = (None, None)
            scan_time = self.scan_parameters.additional_scan_parameters.get("scan_time", None)
            scan_duration = self.scan_parameters.additional_scan_parameters.get(
                "scan_duration", None