diff --git a/Lesson2/step7/project.py b/Lesson2/step7/project.py
index cdedcae..179fdca 100644
--- a/Lesson2/step7/project.py
+++ b/Lesson2/step7/project.py
@@ -4,6 +4,7 @@
 from database_setup import Base, Restaurant, MenuItem
 from flask import session as login_session
 import random
+import string
 from oauth2client.client import flow_from_clientsecrets
 from oauth2client.client import FlowExchangeError
 import httplib2
@@ -124,7 +125,7 @@ def gconnect():
 def gdisconnect():
     access_token = login_session['access_token']
     print 'In gdisconnect access token is %s', access_token
-    print 'User name is: ' 
+    print 'User name is: '
     print login_session['username']
     if access_token is None:
  	print 'Access Token is None'
@@ -137,7 +138,7 @@ def gdisconnect():
     print 'result is '
     print result
     if result['status'] == '200':
-	del login_session['access_token'] 
+	del login_session['access_token']
     	del login_session['gplus_id']
     	del login_session['username']
     	del login_session['email']
@@ -146,7 +147,7 @@ def gdisconnect():
     	response.headers['Content-Type'] = 'application/json'
     	return response
     else:
-	
+
     	response = make_response(json.dumps('Failed to revoke token for given user.', 400))
     	response.headers['Content-Type'] = 'application/json'
     	return response