fix code style

Author: dt3310321

qcloud_cos/cos_client.py

@@ -7,7 +7,6 @@
 import os
 import sys
 import copy
-import time
 import xml.dom.minidom
 import xml.etree.ElementTree
 from requests import Request, Session

qcloud_cos/xml2dict.py

@@ -34,6 +34,7 @@ def updateDict(self, aDict):
             else:
                 self.update({key: aDict[key]})
 
+
 if __name__ == "__main__":
     s = """<?xml version="1.0" encoding="utf-8" ?>
     <result xmlns= "wqa.bai.com">