From 77e124fc1dfa3e19abf980da42d96dfb99fa8638 Mon Sep 17 00:00:00 2001
From: Piero Toffanin <pt@masseranolabs.com>
Date: Fri, 15 May 2020 17:27:48 -0400
Subject: [PATCH] Handle empty list

---
 opendm/shots.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/opendm/shots.py b/opendm/shots.py
index df96b4cd..5f472a13 100644
--- a/opendm/shots.py
+++ b/opendm/shots.py
@@ -94,7 +94,7 @@ def get_geojson_shots_from_opensfm(reconstruction_file, geocoords_transformation
         raise RuntimeError("%s does not exist." % reconstruction_file)
 
 def merge_geojson_shots(geojson_shots_files, output_geojson_file):
-    result = None
+    result = {}
     added_files = {}
     for shot_file in geojson_shots_files:
         with open(shot_file, "r") as f: