From 49427abeb841f5a6b59dd9145a93e89bb205cf48 Mon Sep 17 00:00:00 2001
From: pattonw <pattonw@hhmi.org>
Date: Mon, 13 Nov 2023 15:25:07 -0800
Subject: [PATCH] fix typo: return an empty list

---
 funlib/persistence/graphs/sqlite_graph_provider.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/funlib/persistence/graphs/sqlite_graph_provider.py b/funlib/persistence/graphs/sqlite_graph_provider.py
index 9783993..c696a85 100644
--- a/funlib/persistence/graphs/sqlite_graph_provider.py
+++ b/funlib/persistence/graphs/sqlite_graph_provider.py
@@ -282,7 +282,7 @@ def read_edges(
             nodes = self.read_nodes(roi)
 
         if len(nodes) == 0:
-            return [{}]
+            return []
 
         node_ids = ", ".join([str(node["id"]) for node in nodes])
         node_condition = f"u IN ({node_ids})"
@@ -613,7 +613,10 @@ def get_graph(
         )
         u, v = self.endpoint_names
         node_list = [(n["id"], self.__remove_keys(n, ["id"])) for n in nodes]
-        edge_list = [(e[u], e[v], self.__remove_keys(e, [u, v])) for e in edges]
+        try:
+            edge_list = [(e[u], e[v], self.__remove_keys(e, [u, v])) for e in edges]
+        except KeyError as e:
+            raise ValueError(edges[:5]) from e
         if self.directed:
             graph = SQLiteSubDiGraph(self, roi)
         else: