fix: skip in case of empty bdf

Signed-off-by: F.N. Claessen <[email protected]>
FlexMeasures · Jan 9, 2025 · e68cc02 · e68cc02
1 parent 264b167
commit e68cc02
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/flexmeasures/data/models/data_sources.py b/flexmeasures/data/models/data_sources.py
@@ -416,6 +416,8 @@ def keep_latest_version_in_bdf(bdf: tb.BeliefsDataFrame) -> tb.BeliefsDataFrame:
         A new BeliefsDataFrame containing only the latest version of each source
         for each event_start, with the original index restored.
     """
+    if bdf.empty:
+        return bdf
 
     # Remember the original index, then reset it
     index_levels = bdf.index.names