Merge pull request #1043 from lsst/tickets/DM-49097

DM-49097 : Create empty DataFrame rather than convert from Table
lsst · Feb 22, 2025 · 9f788e7 · 9f788e7
2 parents a365f29 + 2ccfca4
commit 9f788e7
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/python/lsst/pipe/tasks/drpAssociationPipe.py b/python/lsst/pipe/tasks/drpAssociationPipe.py
@@ -275,7 +275,10 @@ def visitDetectorPair(dataRef):
                 unassociatedSsObjects = unassociatedSsObjects[ssObjInTractPatch]
                 nSsSrc = ssInTractPatch.sum()
                 nSsObj = ssObjInTractPatch.sum()
-                diaCat = ssoAssocResult.unAssocDiaSources.to_pandas()
+                if len(ssoAssocResult.unAssocDiaSources) > 0:
+                    diaCat = ssoAssocResult.unAssocDiaSources.to_pandas()
+                else:
+                    diaCat = pd.DataFrame(columns=ssoAssocResult.unAssocDiaSources.columns)
 
             diaInTractPatch = self._trimToPatch(diaCat,
                                                 innerPatchBox,