diff --git a/README.md b/README.md
index 0933d39..400f2fc 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,16 @@ webpy framework: http://webpy.org/
 ### Prerequisites:
 docker https://www.docker.com/
 
+On linux docker is started with
+
+$ sudo systemctl start docker
+
+To run docker-compose without sudo the user must be added to the usergroup:
+
+https://docs.docker.com/install/linux/linux-postinstall/
+
 ### Build & Run
+
 $ docker-compose up --build
 
 ### Prune/Recreate
diff --git a/src/app/views/login.py b/src/app/views/login.py
index 903fa31..1fec6a3 100644
--- a/src/app/views/login.py
+++ b/src/app/views/login.py
@@ -2,9 +2,7 @@ import web
 from views.forms import login_form
 import models.login
 from views.utils import get_nav_bar
-import os, hmac, base64, pickle, hashlib
-from io import StringIO
-from deepdiff import DeepDiff
+import os, hmac, base64, pickle
 
 # Get html templates
 render = web.template.render('templates/')