need to import signal, too

diff --git a/application/app.py b/application/app.py
index 8135eae38b0596e6a4dabba90001bc8094a59891..628ccb825a28e76bbb07eaf1913ef968c150a263 100755 (executable)
--- a/application/app.py
+++ b/application/app.py
@@ -9,6 +9,7 @@ import cherrypy
 from cherrypy.lib.static import serve_file
 import gpiod
 from gpiod.line import Direction, Value
+import signal
 import sys
 
 # set gpio lines