updated background dominant color calculation

reworked updater to work as handler, will restart if exception

update.py

@@ -3,6 +3,7 @@ from urllib.request import urlopen
 from zipfile import ZipFile
 from io import BytesIO
 from time import sleep
+import subprocess
 
 
 while True:
@@ -23,9 +24,11 @@ except urllib.error.HTTPError:
     print("No update available.")
     pass
 
-try:
-    exec(open('spotifycontroller.py').read())
-except:
-    print("An error has ocurred, reestablishing the application in 10 seconds.")
-    sleep(10)
-    exec(open('spotifycontroller.py').read())
+
+while True:
+    try:
+        subprocess.check_call(['python', 'spotifycontroller.py'])
+    except:
+        print("An error has ocurred, reestablishing the application in 10 seconds.")
+        sleep(10)
+        continue