diff --git a/docs/source/conf.py b/docs/source/conf.py
index 7166b1ed..25fded29 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -11,7 +11,7 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-import sys, os
+import os
 
 os.system('./genapi.py')
 
@@ -174,8 +174,8 @@ htmlhelp_basename = 'Weboobdoc'
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass [howto/manual]).
 latex_documents = [
-  ('index', 'Weboob.tex', u'Weboob Documentation',
-   u'Weboob Team', 'manual'),
+    ('index', 'Weboob.tex', u'Weboob Documentation',
+     u'Weboob Team', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
diff --git a/tools/debpydep.py b/tools/debpydep.py
index 10cef35d..f2ce4fa6 100755
--- a/tools/debpydep.py
+++ b/tools/debpydep.py
@@ -4,7 +4,6 @@
 import os
 import subprocess
 import sys
-from cStringIO import StringIO
 
 selection = set()
 dependencies = set()
diff --git a/tools/pyflakes.sh b/tools/pyflakes.sh
index 121c1d2a..8f29661e 100755
--- a/tools/pyflakes.sh
+++ b/tools/pyflakes.sh
@@ -12,9 +12,9 @@ fi
 
 if [ -n "${FLAKE8}" ]; then
     set -e
-    ${FLAKE8} --ignore=E,W --exclude='*_ui.py' *.py weboob modules contrib scripts/*
+    ${FLAKE8} --ignore=E,W --exclude='*_ui.py' *.py weboob modules contrib docs scripts/* tools/*.py
 else
     # grep will return 0 only if it founds something, but our script
     # wants to return 0 when it founds nothing!
-    pyflakes *.py weboob modules contrib scripts/* | grep -v redefinition && exit 1 || exit 0
+    pyflakes *.py weboob modules contrib docs scripts/* tools/*.py | grep -v redefinition && exit 1 || exit 0
 fi