Fix for an empty list

pypsa-meets-earth · May 3, 2023 · 2ad4a37 · 2ad4a37
1 parent b01438c
commit 2ad4a37
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/scripts/simplify_network.py b/scripts/simplify_network.py
@@ -471,7 +471,8 @@ def aggregate_to_substations(n, aggregation_strategies=dict(), buses_i=None):
         dist.loc[incarrier_b, ~incarrier_b] = np.inf
 
     busmap = n.buses.index.to_series()
-    busmap.loc[buses_i] = dist.idxmin(1)
+    if dist:
+        busmap.loc[buses_i] = dist.idxmin(1)
 
     bus_strategies, generator_strategies = get_aggregation_strategies(
         aggregation_strategies