clean whitespace, fix blank lines according to pep8

4 files changed, 8 insertions, 7 deletions

diff --git a/oauthlib/oauth2/draft25/__init__.py b/oauthlib/oauth2/draft25/__init__.py
index 5987b3e..53370a7 100644
--- a/oauthlib/oauth2/draft25/__init__.py
+++ b/oauthlib/oauth2/draft25/__init__.py
@@ -1310,7 +1310,7 @@ class WebApplicationServer(AuthorizationEndpoint, TokenEndpoint, ResourceEndpoin
 class MobileApplicationServer(AuthorizationEndpoint, ResourceEndpoint):
     """An all-in-one endpoint featuring Implicit code grant and Bearer tokens."""
 
-    def __init__(self, request_validator, token_generator=None, 
+    def __init__(self, request_validator, token_generator=None,
             token_expires_in=None, **kwargs):
         implicit_grant = grant_types.ImplicitGrant(request_validator)
         bearer = tokens.BearerToken(request_validator, token_generator,
diff --git a/oauthlib/oauth2/draft25/exceptions.py b/oauthlib/oauth2/draft25/exceptions.py
index 01a089d..81e1b9f 100644
--- a/oauthlib/oauth2/draft25/exceptions.py
+++ b/oauthlib/oauth2/draft25/exceptions.py
@@ -1,5 +1,6 @@
 from __future__ import unicode_literals
 
+
 class InvalidClientIdentifier(Exception):
     def __init__(self, client_identifier):
         self.client_identifier = client_identifier
@@ -10,9 +11,10 @@ class InvalidClientIdentifier(Exception):
     def __str__(self):
         return unicode(self).encode('utf-8')
 
+
 class MissingRedirectURI(Exception):
     pass
 
+
 class InvalidRedirectURI(Exception):
     pass
-
diff --git a/oauthlib/oauth2/draft25/utils.py b/oauthlib/oauth2/draft25/utils.py
index 4e17c17..0a8aab5 100644
--- a/oauthlib/oauth2/draft25/utils.py
+++ b/oauthlib/oauth2/draft25/utils.py
@@ -80,4 +80,3 @@ def generate_age(issue_time):
     td = datetime.datetime.now() - issue_time
     age = (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10**6) / 10**6
     return unicode_type(age)
-
diff --git a/oauthlib/oauth2/ext/flask.py b/oauthlib/oauth2/ext/flask.py
index 1c7734c..d6437a2 100644
--- a/oauthlib/oauth2/ext/flask.py
+++ b/oauthlib/oauth2/ext/flask.py
@@ -15,13 +15,13 @@ log = logging.getLogger('oauthlib')
 
 class OAuth2ProviderDecorator(object):
 
-    def __init__(self, error_uri,server=None,authorization_endpoint=None,
-            token_endpoint=None, resource_endpoint=None):
+    def __init__(self, error_uri, server=None, authorization_endpoint=None,
+                 token_endpoint=None, resource_endpoint=None):
         self._authorization_endpoint = authorization_endpoint or server
         self._token_endpoint = token_endpoint or server
         self._resource_endpoint = resource_endpoint or server
         self._error_uri = error_uri
-    
+
     def __getattr__(self, name):
         ctx = stack.top
         if ctx is not None:
@@ -30,7 +30,7 @@ class OAuth2ProviderDecorator(object):
                 return getattr(ctx, oauth_name)
             except AttributeError:
                 return None
-        return None 
+        return None
 
     def _set_ctx(self, name, value):
         ctx = stack.top