diff --git a/__init__.py b/__init__.py
index 1818d1f394..90a94ebac9 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,5 +1,5 @@
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
 from carrier import *
diff --git a/carrier.py b/carrier.py
index d9f6548787..cb89b87904 100644
--- a/carrier.py
+++ b/carrier.py
@@ -1,5 +1,5 @@
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 from decimal import Decimal
 from trytond.model import fields
 from trytond.transaction import Transaction
diff --git a/sale.py b/sale.py
index d54bcd7ee5..d2bf02f56d 100644
--- a/sale.py
+++ b/sale.py
@@ -1,5 +1,5 @@
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 from decimal import Decimal
 
 from trytond.pool import PoolMeta
diff --git a/setup.py b/setup.py
index 4d7c9c663d..d1347c1541 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 
 from setuptools import setup
 import re
diff --git a/stock.py b/stock.py
index c39e1b5e54..5618bd0b5e 100644
--- a/stock.py
+++ b/stock.py
@@ -1,5 +1,5 @@
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 from decimal import Decimal
 
 from trytond.pool import Pool, PoolMeta
diff --git a/tests/__init__.py b/tests/__init__.py
index 1803291c7d..ac2f05ee91 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,5 +1,5 @@
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 
 from test_carrier_percentage import suite
 
diff --git a/tests/test_carrier_percentage.py b/tests/test_carrier_percentage.py
index c582e569cf..a6791f1dc4 100644
--- a/tests/test_carrier_percentage.py
+++ b/tests/test_carrier_percentage.py
@@ -1,5 +1,5 @@
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 import unittest
 import doctest
 from decimal import Decimal