Merge branch 'master' into doc-improvement

1 files changed, 2 insertions, 4 deletions

diff --git a/oauthlib/oauth1/rfc5849/errors.py b/oauthlib/oauth1/rfc5849/errors.py
index a5c59bd..98d327f 100644
--- a/oauthlib/oauth1/rfc5849/errors.py
+++ b/oauthlib/oauth1/rfc5849/errors.py
@@ -6,8 +6,6 @@ oauthlib.oauth1.rfc5849.errors
 Error used both by OAuth 1 clients and provicers to represent the spec
 defined error responses for all four core grant types.
 """
-from __future__ import unicode_literals
-
 from oauthlib.common import add_params_to_uri, urlencode
 
 
@@ -37,10 +35,10 @@ class OAuth1Error(Exception):
         request:  Oauthlib Request object
         """
         self.description = description or self.description
-        message = '(%s) %s' % (self.error, self.description)
+        message = '({}) {}'.format(self.error, self.description)
         if request:
             message += ' ' + repr(request)
-        super(OAuth1Error, self).__init__(message)
+        super().__init__(message)
 
         self.uri = uri
         self.status_code = status_code