flake8 cleanup

plugins/dropbox.py

 
 import sardine
 
-import os
 import subprocess
 
 
         cmd = ['dropbox', 'status']
         try:
             out = subprocess.check_output(cmd)
-        except OSError as e:
+        except OSError:
             self.status = DropboxStatus.error
         else:
-            lines = out.split("\n")
             if "Up to date" in out:
                 self.status = DropboxStatus.up_to_date
                 return