--- a/babel/messages/jslexer.py
+++ b/babel/messages/jslexer.py
@@ -58,6 +58,7 @@
 class TokenError(ValueError):
     """Raised if the tokenizer stumbled upon invalid tokens."""
 
+
 class Token(tuple):
     """Represents a token as returned by `tokenize`."""
     __slots__ = ()
@@ -69,6 +70,7 @@
     value = property(itemgetter(1))
     lineno = property(itemgetter(2))
 
+
 def indicates_division(token):
     """A helper function that helps the tokenizer to decide if the current
     token may be followed by a division operator.
@@ -77,6 +79,7 @@
         return token.value in (')', ']', '}', '++', '--')
     return token.type in ('name', 'number', 'string', 'regexp')
 
+
 def unquote_string(string):
     """Unquote a string with JavaScript rules.  The string has to start with
     string delimiters (``'`` or ``"``.)
@@ -134,6 +137,7 @@
 
     return u''.join(result)
 
+
 def tokenize(source):
     """Tokenize a JavaScript source.