diff --git a/requests/models.py b/requests/models.py
index caf13d66..cb05e030 100644
--- a/requests/models.py
+++ b/requests/models.py
@@ -148,8 +148,7 @@ class RequestEncodingMixin(object):
             else:
                 fdata = fp.read()
 
-            rf = RequestField(name=k, data=fdata,
-                              filename=fn, headers=fh)
+            rf = RequestField(name=k, data=fdata, filename=fn, headers=fh)
             rf.make_multipart(content_type=ft)
             new_fields.append(rf)
 
@@ -206,17 +205,8 @@ class Request(RequestHooksMixin):
       <PreparedRequest [GET]>
 
     """
-    def __init__(self,
-        method=None,
-        url=None,
-        headers=None,
-        files=None,
-        data=None,
-        params=None,
-        auth=None,
-        cookies=None,
-        hooks=None,
-        json=None):
+    def __init__(self, method=None, url=None, headers=None, files=None,
+        data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
 
         # Default empty dicts for dict params.
         data = [] if data is None else data
@@ -295,8 +285,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
         self.hooks = default_hooks()
 
     def prepare(self, method=None, url=None, headers=None, files=None,
-                data=None, params=None, auth=None, cookies=None, hooks=None,
-                json=None):
+        data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
         """Prepares the entire request with the given parameters."""
 
         self.prepare_method(method)
@@ -305,6 +294,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
         self.prepare_cookies(cookies)
         self.prepare_body(data, files, json)
         self.prepare_auth(auth, url)
+
         # Note that prepare_auth must be last to enable authentication schemes
         # such as OAuth to work on a fully prepared request.
 
@@ -356,9 +346,10 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
             raise InvalidURL(*e.args)
 
         if not scheme:
-            raise MissingSchema("Invalid URL {0!r}: No schema supplied. "
-                                "Perhaps you meant http://{0}?".format(
-                                    to_native_string(url, 'utf8')))
+            error = ("Invalid URL {0!r}: No schema supplied. Perhaps you meant http://{0}?")
+            error = error.format(to_native_string(url, 'utf8'))
+
+            raise MissingSchema(error)
 
         if not host:
             raise InvalidURL("Invalid URL %r: No host supplied" % url)
@@ -532,16 +523,8 @@ class Response(object):
     """
 
     __attrs__ = [
-        '_content',
-        'status_code',
-        'headers',
-        'url',
-        'history',
-        'encoding',
-        'reason',
-        'cookies',
-        'elapsed',
-        'request',
+        '_content', 'status_code', 'headers', 'url', 'history',
+        'encoding', 'reason', 'cookies', 'elapsed', 'request'
     ]
 
     def __init__(self):