9 files changed, 26 insertions, 21 deletions
diff --git a/oauthlib/oauth1/rfc5849/__init__.py b/oauthlib/oauth1/rfc5849/__init__.py
index b629fc1..c639667 100644
--- a/oauthlib/oauth1/rfc5849/__init__.py
+++ b/oauthlib/oauth1/rfc5849/__init__.py
@@ -9,14 +9,18 @@ for signing and checking OAuth 1.0 RFC 5849 requests.
 import base64
 import hashlib
 import logging
-log = logging.getLogger(__name__)
-
 import urllib.parse as urlparse
 
-from oauthlib.common import Request, urlencode, generate_nonce
-from oauthlib.common import generate_timestamp, to_unicode
+from oauthlib.common import (
+    Request, generate_nonce, generate_timestamp, to_unicode, urlencode,
+)
+
 from . import parameters, signature
 
+log = logging.getLogger(__name__)
+
+
+
 SIGNATURE_HMAC_SHA1 = "HMAC-SHA1"
 SIGNATURE_HMAC_SHA256 = "HMAC-SHA256"
 SIGNATURE_HMAC = SIGNATURE_HMAC_SHA1
diff --git a/oauthlib/oauth1/rfc5849/endpoints/__init__.py b/oauthlib/oauth1/rfc5849/endpoints/__init__.py
index 78ade72..a3a7eb3 100644
--- a/oauthlib/oauth1/rfc5849/endpoints/__init__.py
+++ b/oauthlib/oauth1/rfc5849/endpoints/__init__.py
@@ -1,7 +1,7 @@
+from .access_token import AccessTokenEndpoint
+from .authorization import AuthorizationEndpoint
 from .base import BaseEndpoint
+from .pre_configured import WebApplicationServer
 from .request_token import RequestTokenEndpoint
-from .authorization import AuthorizationEndpoint
-from .access_token import AccessTokenEndpoint
 from .resource import ResourceEndpoint
 from .signature_only import SignatureOnlyEndpoint
-from .pre_configured import WebApplicationServer
diff --git a/oauthlib/oauth1/rfc5849/endpoints/authorization.py b/oauthlib/oauth1/rfc5849/endpoints/authorization.py
index 7d0353b..80a3902 100644
--- a/oauthlib/oauth1/rfc5849/endpoints/authorization.py
+++ b/oauthlib/oauth1/rfc5849/endpoints/authorization.py
@@ -6,11 +6,12 @@ oauthlib.oauth1.rfc5849.endpoints.authorization
 This module is an implementation of various logic needed
 for signing and checking OAuth 1.0 RFC 5849 requests.
 """
+from urllib.parse import urlencode
+
 from oauthlib.common import Request, add_params_to_uri
 
 from .. import errors
 from .base import BaseEndpoint
-from urllib.parse import urlencode
 
 
 class AuthorizationEndpoint(BaseEndpoint):
diff --git a/oauthlib/oauth1/rfc5849/endpoints/base.py b/oauthlib/oauth1/rfc5849/endpoints/base.py
index f9a8f57..8103606 100644
--- a/oauthlib/oauth1/rfc5849/endpoints/base.py
+++ b/oauthlib/oauth1/rfc5849/endpoints/base.py
@@ -10,9 +10,11 @@ import time
 
 from oauthlib.common import CaseInsensitiveDict, Request, generate_token
 
-from .. import (CONTENT_TYPE_FORM_URLENCODED, SIGNATURE_HMAC_SHA1, SIGNATURE_HMAC_SHA256, SIGNATURE_RSA,
-                SIGNATURE_TYPE_AUTH_HEADER, SIGNATURE_TYPE_BODY,
-                SIGNATURE_TYPE_QUERY, errors, signature, utils)
+from .. import (
+    CONTENT_TYPE_FORM_URLENCODED, SIGNATURE_HMAC_SHA1, SIGNATURE_HMAC_SHA256,
+    SIGNATURE_RSA, SIGNATURE_TYPE_AUTH_HEADER, SIGNATURE_TYPE_BODY,
+    SIGNATURE_TYPE_QUERY, errors, signature, utils,
+)
 
 
 class BaseEndpoint:
diff --git a/oauthlib/oauth1/rfc5849/endpoints/pre_configured.py b/oauthlib/oauth1/rfc5849/endpoints/pre_configured.py
index b14a6d8..23e3cfc 100644
--- a/oauthlib/oauth1/rfc5849/endpoints/pre_configured.py
+++ b/oauthlib/oauth1/rfc5849/endpoints/pre_configured.py
@@ -1,5 +1,7 @@
-from . import (AccessTokenEndpoint, AuthorizationEndpoint,
-               RequestTokenEndpoint, ResourceEndpoint)
+from . import (
+    AccessTokenEndpoint, AuthorizationEndpoint, RequestTokenEndpoint,
+    ResourceEndpoint,
+)
 
 
 class WebApplicationServer(RequestTokenEndpoint, AuthorizationEndpoint,
diff --git a/oauthlib/oauth1/rfc5849/parameters.py b/oauthlib/oauth1/rfc5849/parameters.py
index 778a46d..a9fe23c 100644
--- a/oauthlib/oauth1/rfc5849/parameters.py
+++ b/oauthlib/oauth1/rfc5849/parameters.py
@@ -7,12 +7,12 @@ This module contains methods related to `section 3.5`_ of the OAuth 1.0a spec.
 
 .. _`section 3.5`: https://tools.ietf.org/html/rfc5849#section-3.5
 """
+from urllib.parse import urlparse, urlunparse
+
 from oauthlib.common import extract_params, urlencode
 
 from . import utils
 
-from urllib.parse import urlparse, urlunparse
-
 
 # TODO: do we need filter_params now that oauth_params are handled by Request?
 #       We can easily pass in just oauth protocol params.
diff --git a/oauthlib/oauth1/rfc5849/request_validator.py b/oauthlib/oauth1/rfc5849/request_validator.py
index 657bfe3..750902f 100644
--- a/oauthlib/oauth1/rfc5849/request_validator.py
+++ b/oauthlib/oauth1/rfc5849/request_validator.py
@@ -6,8 +6,6 @@ oauthlib.oauth1.rfc5849
 This module is an implementation of various logic needed
 for signing and checking OAuth 1.0 RFC 5849 requests.
 """
-import sys
-
 from . import SIGNATURE_METHODS, utils
 
 
diff --git a/oauthlib/oauth1/rfc5849/signature.py b/oauthlib/oauth1/rfc5849/signature.py
index fdc359e..b11720e 100644
--- a/oauthlib/oauth1/rfc5849/signature.py
+++ b/oauthlib/oauth1/rfc5849/signature.py
@@ -25,13 +25,12 @@ import binascii
 import hashlib
 import hmac
 import logging
+import urllib.parse as urlparse
 
 from oauthlib.common import extract_params, safe_string_equals, urldecode
-import urllib.parse as urlparse
 
 from . import utils
 
-
 log = logging.getLogger(__name__)
 
 
diff --git a/oauthlib/oauth1/rfc5849/utils.py b/oauthlib/oauth1/rfc5849/utils.py
index 28e006a..4d22a3e 100644
--- a/oauthlib/oauth1/rfc5849/utils.py
+++ b/oauthlib/oauth1/rfc5849/utils.py
@@ -6,10 +6,9 @@ oauthlib.utils
 This module contains utility methods used by various parts of the OAuth
 spec.
 """
-from oauthlib.common import quote, unquote
-
 import urllib.request as urllib2
 
+from oauthlib.common import quote, unquote
 
 UNICODE_ASCII_CHARACTER_SET = ('abcdefghijklmnopqrstuvwxyz'
                                'ABCDEFGHIJKLMNOPQRSTUVWXYZ'