Fix response is not defined (#233)

Author: Quentame

pyicloud/base.py

@@ -114,7 +114,7 @@ def request(self, *args, **kwargs):
     def _raise_error(self, code, reason):
         if self.service.requires_2sa and \
                 reason == 'Missing X-APPLE-WEBAUTH-TOKEN cookie':
-            raise PyiCloud2SARequiredError(response.url)
+            raise PyiCloud2SARequiredError(self.service.user['apple_id'])
         if code == 'ZONE_NOT_FOUND' or code == 'AUTHENTICATION_FAILED':
             reason = 'Please log into https://icloud.com/ to manually ' \
                 'finish setting up your iCloud service'

pyicloud/exceptions.py

@@ -25,8 +25,8 @@ class PyiCloudFailedLoginException(PyiCloudException):
 
 
 class PyiCloud2SARequiredError(PyiCloudException):
-    def __init__(self, url):
-        message = "Two-step authentication required for %s" % url
+    def __init__(self, apple_id):
+        message = "Two-step authentication required for account: %s" % apple_id
         super(PyiCloud2SARequiredError, self).__init__(message)