diff --git a/tableauserverclient/datetime_helpers.py b/tableauserverclient/datetime_helpers.py
index d15a3a801..95041f8e1 100644
--- a/tableauserverclient/datetime_helpers.py
+++ b/tableauserverclient/datetime_helpers.py
@@ -1,6 +1,8 @@
 import datetime
 
-# This code below is from the python documentation for tzinfo: https://docs.python.org/2.3/lib/datetime-tzinfo.html
+# This code below is from the python documentation for
+# tzinfo: https://docs.python.org/2.3/lib/datetime-tzinfo.html
+
 ZERO = datetime.timedelta(0)
 HOUR = datetime.timedelta(hours=1)
 
diff --git a/tableauserverclient/models/column_item.py b/tableauserverclient/models/column_item.py
index 475dd0e2a..9bf198220 100644
--- a/tableauserverclient/models/column_item.py
+++ b/tableauserverclient/models/column_item.py
@@ -1,7 +1,6 @@
 import xml.etree.ElementTree as ET
 
-from .property_decorators import property_is_enum, property_not_empty
-from .exceptions import UnpopulatedPropertyError
+from .property_decorators import property_not_empty
 
 
 class ColumnItem(object):
diff --git a/tableauserverclient/models/connection_item.py b/tableauserverclient/models/connection_item.py
index 829564839..8f923fecb 100644
--- a/tableauserverclient/models/connection_item.py
+++ b/tableauserverclient/models/connection_item.py
@@ -32,8 +32,10 @@ def connection_type(self):
         return self._connection_type
 
     def __repr__(self):
-        return "<ConnectionItem#{_id} embed={embed_password} type={_connection_type} username={username}>"\
-            .format(**self.__dict__)
+        return (
+            "<ConnectionItem#{_id} embed={embed_password} "
+            "type={_connection_type} username={username}>".format(**self.__dict__)
+        )
 
     @classmethod
     def from_response(cls, resp, ns):
@@ -76,11 +78,13 @@ def from_xml_element(cls, parsed_response, ns):
             connection_item.server_address = connection_xml.get('serverAddress', None)
             connection_item.server_port = connection_xml.get('serverPort', None)
 
-            connection_credentials = connection_xml.find('.//t:connectionCredentials', namespaces=ns)
+            connection_credentials = connection_xml.find(
+                './/t:connectionCredentials', namespaces=ns)
 
             if connection_credentials is not None:
 
-                connection_item.connection_credentials = ConnectionCredentials.from_xml_element(connection_credentials)
+                connection_item.connection_credentials = ConnectionCredentials.from_xml_element(
+                    connection_credentials)
 
         return all_connection_items
 
diff --git a/tableauserverclient/models/data_acceleration_report_item.py b/tableauserverclient/models/data_acceleration_report_item.py
index 2f056d0c4..2b443a3d1 100644
--- a/tableauserverclient/models/data_acceleration_report_item.py
+++ b/tableauserverclient/models/data_acceleration_report_item.py
@@ -21,10 +21,6 @@ def site(self):
         def sheet_uri(self):
             return self._sheet_uri
 
-        @property
-        def site(self):
-            return self._site
-
         @property
         def unaccelerated_session_count(self):
             return self._unaccelerated_session_count
diff --git a/tableauserverclient/models/database_item.py b/tableauserverclient/models/database_item.py
index 9aecca6cc..5a7e74737 100644
--- a/tableauserverclient/models/database_item.py
+++ b/tableauserverclient/models/database_item.py
@@ -1,7 +1,5 @@
 import xml.etree.ElementTree as ET
 
-from .permissions_item import Permission
-
 from .property_decorators import property_is_enum, property_not_empty, property_is_boolean
 from .exceptions import UnpopulatedPropertyError
 
diff --git a/tableauserverclient/models/flow_item.py b/tableauserverclient/models/flow_item.py
index 790000df2..c978d8175 100644
--- a/tableauserverclient/models/flow_item.py
+++ b/tableauserverclient/models/flow_item.py
@@ -1,6 +1,6 @@
 import xml.etree.ElementTree as ET
 from .exceptions import UnpopulatedPropertyError
-from .property_decorators import property_not_nullable, property_is_boolean
+from .property_decorators import property_not_nullable
 from .tag_item import TagItem
 from ..datetime_helpers import parse_datetime
 import copy
diff --git a/tableauserverclient/models/interval_item.py b/tableauserverclient/models/interval_item.py
index 484ee709f..cbc148e88 100644
--- a/tableauserverclient/models/interval_item.py
+++ b/tableauserverclient/models/interval_item.py
@@ -173,7 +173,7 @@ def interval(self, interval_value):
             try:
                 if not (1 <= int(interval_value) <= 31):
                     raise ValueError(error)
-            except ValueError as e:
+            except ValueError:
                 if interval_value != "LastDay":
                     raise ValueError(error)
 
diff --git a/tableauserverclient/models/job_item.py b/tableauserverclient/models/job_item.py
index 6ad7f0256..58d1f1396 100644
--- a/tableauserverclient/models/job_item.py
+++ b/tableauserverclient/models/job_item.py
@@ -1,7 +1,5 @@
 import xml.etree.ElementTree as ET
 from ..datetime_helpers import parse_datetime
-from .target import Target
-from ..datetime_helpers import parse_datetime
 
 
 class JobItem(object):
diff --git a/tableauserverclient/models/pagination_item.py b/tableauserverclient/models/pagination_item.py
index 98d6b42f9..a1f5409e3 100644
--- a/tableauserverclient/models/pagination_item.py
+++ b/tableauserverclient/models/pagination_item.py
@@ -31,10 +31,10 @@ def from_response(cls, resp, ns):
         return pagination_item
 
     @classmethod
-    def from_single_page_list(cls, l):
+    def from_single_page_list(cls, single_page_list):
         item = cls()
         item._page_number = 1
-        item._page_size = len(l)
-        item._total_available = len(l)
+        item._page_size = len(single_page_list)
+        item._total_available = len(single_page_list)
 
         return item
diff --git a/tableauserverclient/models/personal_access_token_auth.py b/tableauserverclient/models/personal_access_token_auth.py
index 875f68c48..13a2391b8 100644
--- a/tableauserverclient/models/personal_access_token_auth.py
+++ b/tableauserverclient/models/personal_access_token_auth.py
@@ -8,7 +8,12 @@ def __init__(self, token_name, personal_access_token, site_id=''):
 
     @property
     def credentials(self):
-        return {'personalAccessTokenName': self.token_name, 'personalAccessTokenSecret': self.personal_access_token}
+        return {
+            'personalAccessTokenName': self.token_name,
+            'personalAccessTokenSecret': self.personal_access_token
+        }
 
     def __repr__(self):
-        return "<PersonalAccessToken name={} token={}>".format(self.token_name, self.personal_access_token)
+        return "<PersonalAccessToken name={} token={}>".format(
+            self.token_name, self.personal_access_token
+        )
diff --git a/tableauserverclient/models/project_item.py b/tableauserverclient/models/project_item.py
index 15223e695..d6aece83b 100644
--- a/tableauserverclient/models/project_item.py
+++ b/tableauserverclient/models/project_item.py
@@ -77,9 +77,9 @@ def name(self, value):
     def is_default(self):
         return self.name.lower() == 'default'
 
-    def _parse_common_tags(self, project_xml):
+    def _parse_common_tags(self, project_xml, ns):
         if not isinstance(project_xml, ET.Element):
-            project_xml = ET.fromstring(project_xml).find('.//t:project', namespaces=NAMESPACE)
+            project_xml = ET.fromstring(project_xml).find('.//t:project', namespaces=ns)
 
         if project_xml is not None:
             (_, name, description, content_permissions, parent_id) = self._parse_element(project_xml)
diff --git a/tableauserverclient/models/subscription_item.py b/tableauserverclient/models/subscription_item.py
index 5a99fefc2..1a93c60d2 100644
--- a/tableauserverclient/models/subscription_item.py
+++ b/tableauserverclient/models/subscription_item.py
@@ -1,5 +1,4 @@
 import xml.etree.ElementTree as ET
-from .exceptions import UnpopulatedPropertyError
 from .target import Target
 
 
diff --git a/tableauserverclient/models/table_item.py b/tableauserverclient/models/table_item.py
index 8d8f63674..2f00ef2b7 100644
--- a/tableauserverclient/models/table_item.py
+++ b/tableauserverclient/models/table_item.py
@@ -1,9 +1,6 @@
 import xml.etree.ElementTree as ET
 
-from .permissions_item import Permission
-from .column_item import ColumnItem
-
-from .property_decorators import property_is_enum, property_not_empty, property_is_boolean
+from .property_decorators import property_not_empty, property_is_boolean
 from .exceptions import UnpopulatedPropertyError
 
 
diff --git a/tableauserverclient/models/task_item.py b/tableauserverclient/models/task_item.py
index 780412af9..2f3e6f3aa 100644
--- a/tableauserverclient/models/task_item.py
+++ b/tableauserverclient/models/task_item.py
@@ -36,7 +36,6 @@ def from_response(cls, xml, ns, task_type=Type.ExtractRefresh):
 
     @classmethod
     def _parse_element(cls, element, ns):
-        schedule_id = None
         schedule_item = None
         target = None
         last_run_at = None
diff --git a/tableauserverclient/models/webhook_item.py b/tableauserverclient/models/webhook_item.py
index 90fdd4ba2..57bcfeaa4 100644
--- a/tableauserverclient/models/webhook_item.py
+++ b/tableauserverclient/models/webhook_item.py
@@ -1,10 +1,5 @@
 import xml.etree.ElementTree as ET
-from .exceptions import UnpopulatedPropertyError
-from .property_decorators import property_not_nullable, property_is_boolean, property_is_data_acceleration_config
-from .tag_item import TagItem
-from .view_item import ViewItem
-from .permissions_item import PermissionsRule
-from ..datetime_helpers import parse_datetime
+
 import re
 
 
@@ -86,4 +81,5 @@ def _parse_element(webhook_xml, ns):
         return id, name, url, event, owner_id
 
     def __repr__(self):
-        return "<Webhook id={} name={} url={} event={}>".format(self.id, self.name, self.url, self.event)
+        return "<Webhook id={} name={} url={} event={}>".format(
+            self.id, self.name, self.url, self.event)
diff --git a/tableauserverclient/server/endpoint/data_acceleration_report_endpoint.py b/tableauserverclient/server/endpoint/data_acceleration_report_endpoint.py
index b84a38643..fcc2806c6 100644
--- a/tableauserverclient/server/endpoint/data_acceleration_report_endpoint.py
+++ b/tableauserverclient/server/endpoint/data_acceleration_report_endpoint.py
@@ -18,7 +18,8 @@ def __init__(self, parent_srv):
 
     @property
     def baseurl(self):
-        return "{0}/sites/{1}/dataAccelerationReport".format(self.parent_srv.baseurl, self.parent_srv.site_id)
+        return "{0}/sites/{1}/dataAccelerationReport".format(
+            self.parent_srv.baseurl, self.parent_srv.site_id)
 
     @api(version="3.8")
     def get(self, req_options=None):
diff --git a/tableauserverclient/server/endpoint/databases_endpoint.py b/tableauserverclient/server/endpoint/databases_endpoint.py
index d0fd24c78..85dd406ef 100644
--- a/tableauserverclient/server/endpoint/databases_endpoint.py
+++ b/tableauserverclient/server/endpoint/databases_endpoint.py
@@ -3,7 +3,7 @@
 from .permissions_endpoint import _PermissionsEndpoint
 from .default_permissions_endpoint import _DefaultPermissionsEndpoint
 
-from .. import RequestFactory, DatabaseItem, PaginationItem, PermissionsRule, Permission
+from .. import RequestFactory, DatabaseItem, TableItem, PaginationItem, Permission
 
 import logging
 
diff --git a/tableauserverclient/server/endpoint/datasources_endpoint.py b/tableauserverclient/server/endpoint/datasources_endpoint.py
index 44dea28df..7a00157fe 100644
--- a/tableauserverclient/server/endpoint/datasources_endpoint.py
+++ b/tableauserverclient/server/endpoint/datasources_endpoint.py
@@ -1,14 +1,12 @@
 from .endpoint import Endpoint, api, parameter_added_in
 from .exceptions import InternalServerError, MissingRequiredFieldError
-from .endpoint import api, parameter_added_in, Endpoint
 from .permissions_endpoint import _PermissionsEndpoint
-from .exceptions import MissingRequiredFieldError
 from .fileuploads_endpoint import Fileuploads
 from .resource_tagger import _ResourceTagger
 from .. import RequestFactory, DatasourceItem, PaginationItem, ConnectionItem
 from ...filesys_helpers import to_filename, make_download_path
-from ...models.tag_item import TagItem
 from ...models.job_item import JobItem
+
 import os
 import logging
 import copy
@@ -129,7 +127,8 @@ def update(self, datasource_item):
         server_response = self.put_request(url, update_req)
         logger.info('Updated datasource item (ID: {0})'.format(datasource_item.id))
         updated_datasource = copy.copy(datasource_item)
-        return updated_datasource._parse_common_elements(server_response.content, self.parent_srv.namespace)
+        return updated_datasource._parse_common_elements(
+            server_response.content, self.parent_srv.namespace)
 
     # Update datasource connections
     @api(version="2.3")
diff --git a/tableauserverclient/server/endpoint/default_permissions_endpoint.py b/tableauserverclient/server/endpoint/default_permissions_endpoint.py
index 0dff025a1..d435a03d6 100644
--- a/tableauserverclient/server/endpoint/default_permissions_endpoint.py
+++ b/tableauserverclient/server/endpoint/default_permissions_endpoint.py
@@ -3,7 +3,7 @@
 from .. import RequestFactory
 from ...models import PermissionsRule
 
-from .endpoint import Endpoint, api
+from .endpoint import Endpoint
 from .exceptions import MissingRequiredFieldError
 
 
@@ -11,13 +11,14 @@
 
 
 class _DefaultPermissionsEndpoint(Endpoint):
-    ''' Adds default-permission model to another endpoint
+    """ Adds default-permission model to another endpoint
 
     Tableau default-permissions model applies only to databases and projects
     and then takes an object type in the uri to set the defaults.
     This class is meant to be instantated inside a parent endpoint which
     has these supported endpoints
-    '''
+    """
+
     def __init__(self, parent_srv, owner_baseurl):
         super(_DefaultPermissionsEndpoint, self).__init__(parent_srv)
 
diff --git a/tableauserverclient/server/endpoint/endpoint.py b/tableauserverclient/server/endpoint/endpoint.py
index 2b2bca229..5e48b5cc2 100644
--- a/tableauserverclient/server/endpoint/endpoint.py
+++ b/tableauserverclient/server/endpoint/endpoint.py
@@ -74,7 +74,7 @@ def _check_status(self, server_response):
                 # we convert this to a better exception and pass through the raw
                 # response body
                 raise NonXMLResponseError(server_response.content)
-            except Exception as e:
+            except Exception:
                 # anything else re-raise here
                 raise
 
diff --git a/tableauserverclient/server/endpoint/flows_endpoint.py b/tableauserverclient/server/endpoint/flows_endpoint.py
index 7bad807e4..44a110e7e 100644
--- a/tableauserverclient/server/endpoint/flows_endpoint.py
+++ b/tableauserverclient/server/endpoint/flows_endpoint.py
@@ -1,14 +1,12 @@
-from .endpoint import Endpoint, api, parameter_added_in
+from .endpoint import Endpoint, api
 from .exceptions import InternalServerError, MissingRequiredFieldError
-from .endpoint import api, parameter_added_in, Endpoint
 from .permissions_endpoint import _PermissionsEndpoint
-from .exceptions import MissingRequiredFieldError
 from .fileuploads_endpoint import Fileuploads
 from .resource_tagger import _ResourceTagger
 from .. import RequestFactory, FlowItem, PaginationItem, ConnectionItem
 from ...filesys_helpers import to_filename, make_download_path
-from ...models.tag_item import TagItem
 from ...models.job_item import JobItem
+
 import os
 import logging
 import copy
diff --git a/tableauserverclient/server/endpoint/groups_endpoint.py b/tableauserverclient/server/endpoint/groups_endpoint.py
index 2428ff9be..e0acb4477 100644
--- a/tableauserverclient/server/endpoint/groups_endpoint.py
+++ b/tableauserverclient/server/endpoint/groups_endpoint.py
@@ -1,8 +1,8 @@
 from .endpoint import Endpoint, api
 from .exceptions import MissingRequiredFieldError
-from ...models.exceptions import UnpopulatedPropertyError
 from .. import RequestFactory, GroupItem, UserItem, PaginationItem
 from ..pager import Pager
+
 import logging
 
 logger = logging.getLogger('tableau.endpoint.groups')
diff --git a/tableauserverclient/server/endpoint/jobs_endpoint.py b/tableauserverclient/server/endpoint/jobs_endpoint.py
index e70c9c313..d8bbe39c7 100644
--- a/tableauserverclient/server/endpoint/jobs_endpoint.py
+++ b/tableauserverclient/server/endpoint/jobs_endpoint.py
@@ -1,6 +1,7 @@
 from .endpoint import Endpoint, api
 from .. import JobItem, BackgroundJobItem, PaginationItem
 from ..request_options import RequestOptionsBase
+
 import logging
 
 try:
diff --git a/tableauserverclient/server/endpoint/metadata_endpoint.py b/tableauserverclient/server/endpoint/metadata_endpoint.py
index 002379407..900b16fb2 100644
--- a/tableauserverclient/server/endpoint/metadata_endpoint.py
+++ b/tableauserverclient/server/endpoint/metadata_endpoint.py
@@ -1,5 +1,6 @@
 from .endpoint import Endpoint, api
 from .exceptions import GraphQLError
+
 import logging
 import json
 
diff --git a/tableauserverclient/server/endpoint/permissions_endpoint.py b/tableauserverclient/server/endpoint/permissions_endpoint.py
index b28d6fa17..585fd0052 100644
--- a/tableauserverclient/server/endpoint/permissions_endpoint.py
+++ b/tableauserverclient/server/endpoint/permissions_endpoint.py
@@ -2,7 +2,7 @@
 
 from .. import RequestFactory, PermissionsRule
 
-from .endpoint import Endpoint, api
+from .endpoint import Endpoint
 from .exceptions import MissingRequiredFieldError
 
 
@@ -10,13 +10,14 @@
 
 
 class _PermissionsEndpoint(Endpoint):
-    ''' Adds permission model to another endpoint
+    """ Adds permission model to another endpoint
 
     Tableau permissions model is identical between objects but they are nested under
     the parent object endpoint (i.e. permissions for workbooks are under
     /workbooks/:id/permission).  This class is meant to be instantated inside a
     parent endpoint which has these supported endpoints
-    '''
+    """
+
     def __init__(self, parent_srv, owner_baseurl):
         super(_PermissionsEndpoint, self).__init__(parent_srv)
 
diff --git a/tableauserverclient/server/endpoint/projects_endpoint.py b/tableauserverclient/server/endpoint/projects_endpoint.py
index f0eb92626..a7f22795c 100644
--- a/tableauserverclient/server/endpoint/projects_endpoint.py
+++ b/tableauserverclient/server/endpoint/projects_endpoint.py
@@ -3,7 +3,7 @@
 from .permissions_endpoint import _PermissionsEndpoint
 from .default_permissions_endpoint import _DefaultPermissionsEndpoint
 
-from .. import RequestFactory, ProjectItem, PaginationItem, PermissionsRule, Permission
+from .. import RequestFactory, ProjectItem, PaginationItem, Permission
 
 import logging
 
diff --git a/tableauserverclient/server/endpoint/schedules_endpoint.py b/tableauserverclient/server/endpoint/schedules_endpoint.py
index 06fb7e408..29389c693 100644
--- a/tableauserverclient/server/endpoint/schedules_endpoint.py
+++ b/tableauserverclient/server/endpoint/schedules_endpoint.py
@@ -1,6 +1,6 @@
 from .endpoint import Endpoint, api
 from .exceptions import MissingRequiredFieldError
-from .. import RequestFactory, PaginationItem, ScheduleItem, WorkbookItem, DatasourceItem, TaskItem
+from .. import RequestFactory, PaginationItem, ScheduleItem, TaskItem
 import logging
 import copy
 from collections import namedtuple
diff --git a/tableauserverclient/server/endpoint/sites_endpoint.py b/tableauserverclient/server/endpoint/sites_endpoint.py
index 6d67fe69e..8a6212a28 100644
--- a/tableauserverclient/server/endpoint/sites_endpoint.py
+++ b/tableauserverclient/server/endpoint/sites_endpoint.py
@@ -1,8 +1,9 @@
 from .endpoint import Endpoint, api
 from .exceptions import MissingRequiredFieldError
 from .. import RequestFactory, SiteItem, PaginationItem
-import logging
+
 import copy
+import logging
 
 logger = logging.getLogger('tableau.endpoint.sites')
 
diff --git a/tableauserverclient/server/endpoint/subscriptions_endpoint.py b/tableauserverclient/server/endpoint/subscriptions_endpoint.py
index 70422e208..00a7c6856 100644
--- a/tableauserverclient/server/endpoint/subscriptions_endpoint.py
+++ b/tableauserverclient/server/endpoint/subscriptions_endpoint.py
@@ -1,6 +1,6 @@
 from .endpoint import Endpoint, api
-from .exceptions import MissingRequiredFieldError
 from .. import RequestFactory, SubscriptionItem, PaginationItem
+
 import logging
 
 logger = logging.getLogger('tableau.endpoint.subscriptions')
diff --git a/tableauserverclient/server/endpoint/tables_endpoint.py b/tableauserverclient/server/endpoint/tables_endpoint.py
index b8430a124..032f13016 100644
--- a/tableauserverclient/server/endpoint/tables_endpoint.py
+++ b/tableauserverclient/server/endpoint/tables_endpoint.py
@@ -1,10 +1,9 @@
 from .endpoint import api, Endpoint
 from .exceptions import MissingRequiredFieldError
 from .permissions_endpoint import _PermissionsEndpoint
-from .default_permissions_endpoint import _DefaultPermissionsEndpoint
 from ..pager import Pager
 
-from .. import RequestFactory, TableItem, ColumnItem, PaginationItem, PermissionsRule, Permission
+from .. import RequestFactory, TableItem, ColumnItem, PaginationItem
 
 import logging
 
diff --git a/tableauserverclient/server/endpoint/tasks_endpoint.py b/tableauserverclient/server/endpoint/tasks_endpoint.py
index d08209769..a3e5e7b34 100644
--- a/tableauserverclient/server/endpoint/tasks_endpoint.py
+++ b/tableauserverclient/server/endpoint/tasks_endpoint.py
@@ -1,6 +1,7 @@
 from .endpoint import Endpoint, api
 from .exceptions import MissingRequiredFieldError
 from .. import TaskItem, PaginationItem, RequestFactory
+
 import logging
 
 logger = logging.getLogger('tableau.endpoint.tasks')
diff --git a/tableauserverclient/server/endpoint/users_endpoint.py b/tableauserverclient/server/endpoint/users_endpoint.py
index 0949a5e5b..3ce1f16ab 100644
--- a/tableauserverclient/server/endpoint/users_endpoint.py
+++ b/tableauserverclient/server/endpoint/users_endpoint.py
@@ -2,8 +2,9 @@
 from .exceptions import MissingRequiredFieldError
 from .. import RequestFactory, UserItem, WorkbookItem, PaginationItem
 from ..pager import Pager
-import logging
+
 import copy
+import logging
 
 logger = logging.getLogger('tableau.endpoint.users')
 
diff --git a/tableauserverclient/server/endpoint/views_endpoint.py b/tableauserverclient/server/endpoint/views_endpoint.py
index 85ae70f93..7c8a4768e 100644
--- a/tableauserverclient/server/endpoint/views_endpoint.py
+++ b/tableauserverclient/server/endpoint/views_endpoint.py
@@ -2,10 +2,10 @@
 from .exceptions import MissingRequiredFieldError
 from .resource_tagger import _ResourceTagger
 from .permissions_endpoint import _PermissionsEndpoint
-from .. import RequestFactory, ViewItem, PaginationItem
-from ...models.tag_item import TagItem
-import logging
+from .. import ViewItem, PaginationItem
+
 from contextlib import closing
+import logging
 
 logger = logging.getLogger('tableau.endpoint.views')
 
diff --git a/tableauserverclient/server/endpoint/webhooks_endpoint.py b/tableauserverclient/server/endpoint/webhooks_endpoint.py
index 4e69974d1..fe108a27d 100644
--- a/tableauserverclient/server/endpoint/webhooks_endpoint.py
+++ b/tableauserverclient/server/endpoint/webhooks_endpoint.py
@@ -1,8 +1,9 @@
-from .endpoint import Endpoint, api, parameter_added_in
+from .endpoint import Endpoint, api
 from ...models import WebhookItem, PaginationItem
 from .. import RequestFactory
 
 import logging
+
 logger = logging.getLogger('tableau.endpoint.webhooks')
 
 
diff --git a/tableauserverclient/server/endpoint/workbooks_endpoint.py b/tableauserverclient/server/endpoint/workbooks_endpoint.py
index 1559bc41b..555ed9806 100644
--- a/tableauserverclient/server/endpoint/workbooks_endpoint.py
+++ b/tableauserverclient/server/endpoint/workbooks_endpoint.py
@@ -1,11 +1,9 @@
 from .endpoint import Endpoint, api, parameter_added_in
 from .exceptions import InternalServerError, MissingRequiredFieldError
 from .permissions_endpoint import _PermissionsEndpoint
-from .exceptions import MissingRequiredFieldError
 from .fileuploads_endpoint import Fileuploads
 from .resource_tagger import _ResourceTagger
 from .. import RequestFactory, WorkbookItem, ConnectionItem, ViewItem, PaginationItem
-from ...models.tag_item import TagItem
 from ...models.job_item import JobItem
 from ...filesys_helpers import to_filename, make_download_path
 
diff --git a/tableauserverclient/server/pager.py b/tableauserverclient/server/pager.py
index 75ac8be4e..0e2382fae 100644
--- a/tableauserverclient/server/pager.py
+++ b/tableauserverclient/server/pager.py
@@ -1,7 +1,6 @@
 from functools import partial
 
 from . import RequestOptions
-from . import Sort
 
 
 class Pager(object):
diff --git a/tableauserverclient/server/request_factory.py b/tableauserverclient/server/request_factory.py
index 87529b84f..a456682ef 100644
--- a/tableauserverclient/server/request_factory.py
+++ b/tableauserverclient/server/request_factory.py
@@ -1,11 +1,9 @@
-from ..datetime_helpers import format_datetime
 import xml.etree.ElementTree as ET
-from functools import wraps
 
 from requests.packages.urllib3.fields import RequestField
 from requests.packages.urllib3.filepost import encode_multipart_formdata
 
-from ..models import TaskItem, UserItem, GroupItem, PermissionsRule
+from ..models import TaskItem
 
 
 def _add_multipart(parts):
diff --git a/tableauserverclient/server/request_options.py b/tableauserverclient/server/request_options.py
index af2ed27de..4dad4c1ea 100644
--- a/tableauserverclient/server/request_options.py
+++ b/tableauserverclient/server/request_options.py
@@ -83,6 +83,7 @@ def apply_query_params(self, url):
 
 class _FilterOptionsBase(RequestOptionsBase):
     """ Provide a basic implementation of adding view filters to the url """
+
     def __init__(self):
         self.view_filters = []
 
diff --git a/tableauserverclient/server/server.py b/tableauserverclient/server/server.py
index 42accf722..37371d707 100644
--- a/tableauserverclient/server/server.py
+++ b/tableauserverclient/server/server.py
@@ -3,7 +3,7 @@
 from .exceptions import NotSignedInError
 from ..namespace import Namespace
 from .endpoint import Sites, Views, Users, Groups, Workbooks, Datasources, Projects, Auth, \
-    Schedules, ServerInfo, Tasks, ServerInfoEndpointNotFoundError, Subscriptions, Jobs, Metadata,\
+    Schedules, ServerInfo, Tasks, Subscriptions, Jobs, Metadata,\
     Databases, Tables, Flows, Webhooks, DataAccelerationReport
 from .endpoint.exceptions import EndpointUnavailableError, ServerInfoEndpointNotFoundError