diff --git a/.gitignore b/.gitignore
index d2d6f36..38c6a6d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,5 @@ nosetests.xml
 .mr.developer.cfg
 .project
 .pydevproject
+
+pg_view.log
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..a982aa6
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,7 @@
+language: python
+python:
+  - "3.4"
+  - "2.7"
+script:
+  - python -m doctest -v pg_view.py
+  - flake8 pg_view.py
diff --git a/pg_view.py b/pg_view.py
index 91aefe1..54afc1f 100644
--- a/pg_view.py
+++ b/pg_view.py
@@ -3,7 +3,6 @@
 
 import os
 import re
-import stat
 import sys
 import glob
 import getpass
@@ -1691,8 +1690,8 @@ def __init__(self, dbname, dbversion, work_directory, consumer):
         self.dbver = dbversion
         self.queue_consumer = consumer
         self.work_directory = work_directory
-        self.df_list_transformation = [{'out': 'dev', 'in': 0, 'fn': self._dereference_dev_name}, {'out': 'space_total'
-                                       , 'in': 1, 'fn': int}, {'out': 'space_left', 'in': 2, 'fn': int}]
+        self.df_list_transformation = [{'out': 'dev', 'in': 0, 'fn': self._dereference_dev_name}, {'out': 'space_total',
+                                        'in': 1, 'fn': int}, {'out': 'space_left', 'in': 2, 'fn': int}]
         self.io_list_transformation = [{'out': 'sectors_read', 'in': 5, 'fn': int}, {'out': 'sectors_written', 'in': 9,
                                        'fn': int}, {'out': 'await', 'in': 13, 'fn': int}]
         self.du_list_transformation = [{'out': 'path_size', 'in': 0, 'fn': int}, {'out': 'path', 'in': 1}]
@@ -2576,7 +2575,7 @@ def layout_x(self, xstart, colwidth, colnames, colhidden, colcandrop):
 
         layout = {}
         # get only the columns that are not hidden
-        col_remaining = [name for name in colnames if not name in colhidden]
+        col_remaining = [name for name in colnames if name not in colhidden]
         # calculate the available screen X dimensions and the width required by all columns
         width_available = self.screen_x - (xstart + 1)
         # we add width of all N fields + N-1 spaces between fields
@@ -3005,6 +3004,7 @@ def pick_connection_arguments(conn_args):
                 break
     return result
 
+
 def can_connect_with_connection_arguments(host, port):
     """ check that we can connect given the specified arguments """
     user, database = detect_default_user_database()
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..aa079ec
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,2 @@
+[flake8]
+max-line-length=120