Exception of imports

main.py

@@ -1,9 +1,7 @@
 
 from time import sleep
-from PIL import Image
-import os
-import serial
 import sys
+import os
 import json
 import datetime
 
@@ -11,6 +9,7 @@ try:
 	import numpy as np
 	from picamera import PiCamera
 	from picamera.array import PiRGBArray
+	import serial
 	import cv2
 
 except Exception as ex: