Add early error message if using calexp as template and no id supplied

lsst · May 23, 2016 · fbeb1a0 · fbeb1a0
1 parent 378d0f7
commit fbeb1a0
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/python/lsst/ip/diffim/getTemplate.py b/python/lsst/ip/diffim/getTemplate.py
@@ -168,6 +168,8 @@ def run(self, exposure, sensorRef, templateIdList):
         if len(templateIdList) > 1:
             self.log.warn("Multiple template visits supplied. Getting template from first visit: %s" %
                           (templateIdList[0]['visit']))
+        if len(templateIdList) == 0:
+            raise RuntimeError("No template supplied! Please supply a template visit id.")
 
         templateId = sensorRef.dataId.copy()
         templateId["visit"] = templateIdList[0]['visit']