diff --git a/contract-tests/client_entity.py b/contract-tests/client_entity.py
index 02c44aba..c0030adb 100644
--- a/contract-tests/client_entity.py
+++ b/contract-tests/client_entity.py
@@ -6,8 +6,14 @@
 from hook import PostingHook
 
 from ldclient import *
-from ldclient import (Context, ExecutionOrder, MigratorBuilder, MigratorFn,
-                      Operation, Stage)
+from ldclient import (
+    Context,
+    ExecutionOrder,
+    MigratorBuilder,
+    MigratorFn,
+    Operation,
+    Stage
+)
 from ldclient.config import BigSegmentsConfig
 
 
diff --git a/ldclient/client.py b/ldclient/client.py
index 9727aa87..1a9b7993 100644
--- a/ldclient/client.py
+++ b/ldclient/client.py
@@ -13,19 +13,28 @@
 from ldclient.context import Context
 from ldclient.evaluation import EvaluationDetail, FeatureFlagsState
 from ldclient.feature_store import _FeatureStoreDataSetSorter
-from ldclient.hook import (EvaluationSeriesContext, Hook,
-                           _EvaluationWithHookResult)
+from ldclient.hook import (
+    EvaluationSeriesContext,
+    Hook,
+    _EvaluationWithHookResult
+)
 from ldclient.impl.big_segments import BigSegmentStoreManager
 from ldclient.impl.datasource.feature_requester import FeatureRequesterImpl
 from ldclient.impl.datasource.polling import PollingUpdateProcessor
-from ldclient.impl.datasource.status import (DataSourceStatusProviderImpl,
-                                             DataSourceUpdateSinkImpl)
+from ldclient.impl.datasource.status import (
+    DataSourceStatusProviderImpl,
+    DataSourceUpdateSinkImpl
+)
 from ldclient.impl.datasource.streaming import StreamingUpdateProcessor
-from ldclient.impl.datastore.status import (DataStoreStatusProviderImpl,
-                                            DataStoreUpdateSinkImpl)
+from ldclient.impl.datastore.status import (
+    DataStoreStatusProviderImpl,
+    DataStoreUpdateSinkImpl
+)
 from ldclient.impl.evaluator import Evaluator, error_reason
-from ldclient.impl.events.diagnostics import (_DiagnosticAccumulator,
-                                              create_diagnostic_id)
+from ldclient.impl.events.diagnostics import (
+    _DiagnosticAccumulator,
+    create_diagnostic_id
+)
 from ldclient.impl.events.event_processor import DefaultEventProcessor
 from ldclient.impl.events.types import EventFactory
 from ldclient.impl.flag_tracker import FlagTrackerImpl
@@ -35,13 +44,21 @@
 from ldclient.impl.rwlock import ReadWriteLock
 from ldclient.impl.stubs import NullEventProcessor, NullUpdateProcessor
 from ldclient.impl.util import check_uwsgi, log
-from ldclient.interfaces import (BigSegmentStoreStatusProvider,
-                                 DataSourceStatusProvider, DataStoreStatus,
-                                 DataStoreStatusProvider, DataStoreUpdateSink,
-                                 FeatureStore, FlagTracker)
+from ldclient.interfaces import (
+    BigSegmentStoreStatusProvider,
+    DataSourceStatusProvider,
+    DataStoreStatus,
+    DataStoreStatusProvider,
+    DataStoreUpdateSink,
+    FeatureStore,
+    FlagTracker
+)
 from ldclient.migrations import OpTracker, Stage
-from ldclient.plugin import (ApplicationMetadata, EnvironmentMetadata,
-                             SdkMetadata)
+from ldclient.plugin import (
+    ApplicationMetadata,
+    EnvironmentMetadata,
+    SdkMetadata
+)
 from ldclient.version import VERSION
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS, VersionedDataKind
 
diff --git a/ldclient/config.py b/ldclient/config.py
index 02455344..32b28dfc 100644
--- a/ldclient/config.py
+++ b/ldclient/config.py
@@ -10,8 +10,13 @@
 from ldclient.feature_store import InMemoryFeatureStore
 from ldclient.hook import Hook
 from ldclient.impl.util import log, validate_application_info
-from ldclient.interfaces import (BigSegmentStore, DataSourceUpdateSink,
-                                 EventProcessor, FeatureStore, UpdateProcessor)
+from ldclient.interfaces import (
+    BigSegmentStore,
+    DataSourceUpdateSink,
+    EventProcessor,
+    FeatureStore,
+    UpdateProcessor
+)
 from ldclient.plugin import Plugin
 
 GET_LATEST_FEATURES_PATH = '/sdk/latest-flags'
diff --git a/ldclient/feature_store_helpers.py b/ldclient/feature_store_helpers.py
index dc29dd22..c9e74ea9 100644
--- a/ldclient/feature_store_helpers.py
+++ b/ldclient/feature_store_helpers.py
@@ -7,8 +7,11 @@
 from expiringdict import ExpiringDict
 
 from ldclient.feature_store import CacheConfig
-from ldclient.interfaces import (DiagnosticDescription, FeatureStore,
-                                 FeatureStoreCore)
+from ldclient.interfaces import (
+    DiagnosticDescription,
+    FeatureStore,
+    FeatureStoreCore
+)
 from ldclient.versioned_data_kind import VersionedDataKind
 
 
diff --git a/ldclient/impl/big_segments.py b/ldclient/impl/big_segments.py
index bf34c2e7..b96c5ef6 100644
--- a/ldclient/impl/big_segments.py
+++ b/ldclient/impl/big_segments.py
@@ -10,8 +10,10 @@
 from ldclient.impl.listeners import Listeners
 from ldclient.impl.repeating_task import RepeatingTask
 from ldclient.impl.util import log
-from ldclient.interfaces import (BigSegmentStoreStatus,
-                                 BigSegmentStoreStatusProvider)
+from ldclient.interfaces import (
+    BigSegmentStoreStatus,
+    BigSegmentStoreStatusProvider
+)
 
 
 class BigSegmentStoreStatusProviderImpl(BigSegmentStoreStatusProvider):
diff --git a/ldclient/impl/datasource/polling.py b/ldclient/impl/datasource/polling.py
index 5ba61718..d6c22dc8 100644
--- a/ldclient/impl/datasource/polling.py
+++ b/ldclient/impl/datasource/polling.py
@@ -10,13 +10,21 @@
 
 from ldclient.config import Config
 from ldclient.impl.repeating_task import RepeatingTask
-from ldclient.impl.util import (UnsuccessfulResponseException,
-                                http_error_message, is_http_error_recoverable,
-                                log)
-from ldclient.interfaces import (DataSourceErrorInfo, DataSourceErrorKind,
-                                 DataSourceState, DataSourceUpdateSink,
-                                 FeatureRequester, FeatureStore,
-                                 UpdateProcessor)
+from ldclient.impl.util import (
+    UnsuccessfulResponseException,
+    http_error_message,
+    is_http_error_recoverable,
+    log
+)
+from ldclient.interfaces import (
+    DataSourceErrorInfo,
+    DataSourceErrorKind,
+    DataSourceState,
+    DataSourceUpdateSink,
+    FeatureRequester,
+    FeatureStore,
+    UpdateProcessor
+)
 
 
 class PollingUpdateProcessor(UpdateProcessor):
diff --git a/ldclient/impl/datasource/status.py b/ldclient/impl/datasource/status.py
index 60e0aadc..172ffee9 100644
--- a/ldclient/impl/datasource/status.py
+++ b/ldclient/impl/datasource/status.py
@@ -4,11 +4,16 @@
 from ldclient.impl.dependency_tracker import DependencyTracker, KindAndKey
 from ldclient.impl.listeners import Listeners
 from ldclient.impl.rwlock import ReadWriteLock
-from ldclient.interfaces import (DataSourceErrorInfo, DataSourceErrorKind,
-                                 DataSourceState, DataSourceStatus,
-                                 DataSourceStatusProvider,
-                                 DataSourceUpdateSink, FeatureStore,
-                                 FlagChange)
+from ldclient.interfaces import (
+    DataSourceErrorInfo,
+    DataSourceErrorKind,
+    DataSourceState,
+    DataSourceStatus,
+    DataSourceStatusProvider,
+    DataSourceUpdateSink,
+    FeatureStore,
+    FlagChange
+)
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS, VersionedDataKind
 
 
diff --git a/ldclient/impl/datasource/streaming.py b/ldclient/impl/datasource/streaming.py
index eb3c6724..d12b4043 100644
--- a/ldclient/impl/datasource/streaming.py
+++ b/ldclient/impl/datasource/streaming.py
@@ -7,15 +7,25 @@
 
 from ld_eventsource import SSEClient
 from ld_eventsource.actions import Event, Fault
-from ld_eventsource.config import (ConnectStrategy, ErrorStrategy,
-                                   RetryDelayStrategy)
+from ld_eventsource.config import (
+    ConnectStrategy,
+    ErrorStrategy,
+    RetryDelayStrategy
+)
 from ld_eventsource.errors import HTTPStatusError
 
 from ldclient.impl.http import HTTPFactory, _http_factory
-from ldclient.impl.util import (http_error_message, is_http_error_recoverable,
-                                log)
-from ldclient.interfaces import (DataSourceErrorInfo, DataSourceErrorKind,
-                                 DataSourceState, UpdateProcessor)
+from ldclient.impl.util import (
+    http_error_message,
+    is_http_error_recoverable,
+    log
+)
+from ldclient.interfaces import (
+    DataSourceErrorInfo,
+    DataSourceErrorKind,
+    DataSourceState,
+    UpdateProcessor
+)
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
 
 # allows for up to 5 minutes to elapse without any data sent across the stream. The heartbeats sent as comments on the
diff --git a/ldclient/impl/datastore/status.py b/ldclient/impl/datastore/status.py
index ef624ad8..a8dd5ee3 100644
--- a/ldclient/impl/datastore/status.py
+++ b/ldclient/impl/datastore/status.py
@@ -5,8 +5,11 @@
 
 from ldclient.impl.listeners import Listeners
 from ldclient.impl.rwlock import ReadWriteLock
-from ldclient.interfaces import (DataStoreStatus, DataStoreStatusProvider,
-                                 DataStoreUpdateSink)
+from ldclient.interfaces import (
+    DataStoreStatus,
+    DataStoreStatusProvider,
+    DataStoreUpdateSink
+)
 
 if TYPE_CHECKING:
     from ldclient.client import _FeatureStoreClientWrapper
diff --git a/ldclient/impl/events/event_processor.py b/ldclient/impl/events/event_processor.py
index c9489adb..b5cf6e8a 100644
--- a/ldclient/impl/events/event_processor.py
+++ b/ldclient/impl/events/event_processor.py
@@ -21,18 +21,25 @@
 from ldclient.impl.events.diagnostics import create_diagnostic_init
 from ldclient.impl.events.event_context_formatter import EventContextFormatter
 from ldclient.impl.events.event_summarizer import EventSummarizer, EventSummary
-from ldclient.impl.events.types import (EventInput, EventInputCustom,
-                                        EventInputEvaluation,
-                                        EventInputIdentify)
+from ldclient.impl.events.types import (
+    EventInput,
+    EventInputCustom,
+    EventInputEvaluation,
+    EventInputIdentify
+)
 from ldclient.impl.fixed_thread_pool import FixedThreadPool
 from ldclient.impl.http import _http_factory
 from ldclient.impl.lru_cache import SimpleLRUCache
 from ldclient.impl.repeating_task import RepeatingTask
 from ldclient.impl.sampler import Sampler
-from ldclient.impl.util import (_headers,
-                                check_if_error_is_recoverable_and_log,
-                                current_time_millis, is_http_error_recoverable,
-                                log, timedelta_millis)
+from ldclient.impl.util import (
+    _headers,
+    check_if_error_is_recoverable_and_log,
+    current_time_millis,
+    is_http_error_recoverable,
+    log,
+    timedelta_millis
+)
 from ldclient.interfaces import EventProcessor
 from ldclient.migrations.tracker import MigrationOpEvent
 
diff --git a/ldclient/impl/integrations/files/file_data_source.py b/ldclient/impl/integrations/files/file_data_source.py
index a015ac19..0fd0593c 100644
--- a/ldclient/impl/integrations/files/file_data_source.py
+++ b/ldclient/impl/integrations/files/file_data_source.py
@@ -6,9 +6,13 @@
 
 from ldclient.impl.repeating_task import RepeatingTask
 from ldclient.impl.util import log
-from ldclient.interfaces import (DataSourceErrorInfo, DataSourceErrorKind,
-                                 DataSourceState, DataSourceUpdateSink,
-                                 UpdateProcessor)
+from ldclient.interfaces import (
+    DataSourceErrorInfo,
+    DataSourceErrorKind,
+    DataSourceState,
+    DataSourceUpdateSink,
+    UpdateProcessor
+)
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
 
 have_yaml = False
diff --git a/ldclient/impl/model/clause.py b/ldclient/impl/model/clause.py
index 2a1fa88f..48257c76 100644
--- a/ldclient/impl/model/clause.py
+++ b/ldclient/impl/model/clause.py
@@ -4,10 +4,15 @@
 from semver import VersionInfo
 
 from ldclient.impl.model.attribute_ref import (
-    AttributeRef, req_attr_ref_with_opt_context_kind)
+    AttributeRef,
+    req_attr_ref_with_opt_context_kind
+)
 from ldclient.impl.model.entity import *
-from ldclient.impl.model.value_parsing import (parse_regex, parse_semver,
-                                               parse_time)
+from ldclient.impl.model.value_parsing import (
+    parse_regex,
+    parse_semver,
+    parse_time
+)
 
 
 class ClausePreprocessedValue:
diff --git a/ldclient/impl/model/segment.py b/ldclient/impl/model/segment.py
index 404b1446..d2b3baa9 100644
--- a/ldclient/impl/model/segment.py
+++ b/ldclient/impl/model/segment.py
@@ -1,7 +1,9 @@
 from typing import Any, List, Optional, Set
 
 from ldclient.impl.model.attribute_ref import (
-    AttributeRef, opt_attr_ref_with_opt_context_kind)
+    AttributeRef,
+    opt_attr_ref_with_opt_context_kind
+)
 from ldclient.impl.model.clause import Clause
 from ldclient.impl.model.entity import *
 
diff --git a/ldclient/impl/model/variation_or_rollout.py b/ldclient/impl/model/variation_or_rollout.py
index c20dee0c..08f94c4e 100644
--- a/ldclient/impl/model/variation_or_rollout.py
+++ b/ldclient/impl/model/variation_or_rollout.py
@@ -1,7 +1,9 @@
 from typing import List, Optional
 
 from ldclient.impl.model.attribute_ref import (
-    AttributeRef, opt_attr_ref_with_opt_context_kind)
+    AttributeRef,
+    opt_attr_ref_with_opt_context_kind
+)
 from ldclient.impl.model.entity import *
 
 
diff --git a/ldclient/impl/operators.py b/ldclient/impl/operators.py
index 2998de7d..73da4186 100644
--- a/ldclient/impl/operators.py
+++ b/ldclient/impl/operators.py
@@ -5,8 +5,11 @@
 from semver import VersionInfo
 
 from ldclient.impl.model.clause import ClausePreprocessedValue
-from ldclient.impl.model.value_parsing import (is_number, parse_semver,
-                                               parse_time)
+from ldclient.impl.model.value_parsing import (
+    is_number,
+    parse_semver,
+    parse_time
+)
 
 
 def _string_operator(context_value: Any, clause_value: Any, fn: Callable[[str, str], bool]) -> bool:
diff --git a/ldclient/integrations/__init__.py b/ldclient/integrations/__init__.py
index 344d80b2..0f0f0591 100644
--- a/ldclient/integrations/__init__.py
+++ b/ldclient/integrations/__init__.py
@@ -7,17 +7,22 @@
 
 from ldclient.feature_store import CacheConfig
 from ldclient.feature_store_helpers import CachingStoreWrapper
-from ldclient.impl.integrations.consul.consul_feature_store import \
+from ldclient.impl.integrations.consul.consul_feature_store import (
     _ConsulFeatureStoreCore
-from ldclient.impl.integrations.dynamodb.dynamodb_big_segment_store import \
+)
+from ldclient.impl.integrations.dynamodb.dynamodb_big_segment_store import (
     _DynamoDBBigSegmentStore
-from ldclient.impl.integrations.dynamodb.dynamodb_feature_store import \
+)
+from ldclient.impl.integrations.dynamodb.dynamodb_feature_store import (
     _DynamoDBFeatureStoreCore
+)
 from ldclient.impl.integrations.files.file_data_source import _FileDataSource
-from ldclient.impl.integrations.redis.redis_big_segment_store import \
+from ldclient.impl.integrations.redis.redis_big_segment_store import (
     _RedisBigSegmentStore
-from ldclient.impl.integrations.redis.redis_feature_store import \
+)
+from ldclient.impl.integrations.redis.redis_feature_store import (
     _RedisFeatureStoreCore
+)
 from ldclient.interfaces import BigSegmentStore
 
 
diff --git a/ldclient/integrations/test_data.py b/ldclient/integrations/test_data.py
index a1b5b089..56e06f9a 100644
--- a/ldclient/integrations/test_data.py
+++ b/ldclient/integrations/test_data.py
@@ -2,8 +2,9 @@
 from typing import Any, Dict, List, Optional, Set, Union
 
 from ldclient.context import Context
-from ldclient.impl.integrations.test_data.test_data_source import \
+from ldclient.impl.integrations.test_data.test_data_source import (
     _TestDataSource
+)
 from ldclient.impl.rwlock import ReadWriteLock
 from ldclient.versioned_data_kind import FEATURES
 
diff --git a/ldclient/migrations/migrator.py b/ldclient/migrations/migrator.py
index 52846706..00216533 100644
--- a/ldclient/migrations/migrator.py
+++ b/ldclient/migrations/migrator.py
@@ -9,10 +9,17 @@
 from ldclient.impl.sampler import Sampler
 from ldclient.impl.util import Result
 from ldclient.migrations.tracker import OpTracker
-from ldclient.migrations.types import (ExecutionOrder, MigrationConfig,
-                                       MigratorCompareFn, MigratorFn,
-                                       Operation, OperationResult, Origin,
-                                       Stage, WriteResult)
+from ldclient.migrations.types import (
+    ExecutionOrder,
+    MigrationConfig,
+    MigratorCompareFn,
+    MigratorFn,
+    Operation,
+    OperationResult,
+    Origin,
+    Stage,
+    WriteResult
+)
 
 if TYPE_CHECKING:
     from ldclient import Context, LDClient
diff --git a/ldclient/plugin.py b/ldclient/plugin.py
index 728ca8a1..dab57f4d 100644
--- a/ldclient/plugin.py
+++ b/ldclient/plugin.py
@@ -9,9 +9,12 @@
 from ldclient.hook import Hook
 from ldclient.impl import AnyNum
 from ldclient.impl.evaluator import error_reason
-from ldclient.interfaces import (BigSegmentStoreStatusProvider,
-                                 DataSourceStatusProvider,
-                                 DataStoreStatusProvider, FlagTracker)
+from ldclient.interfaces import (
+    BigSegmentStoreStatusProvider,
+    DataSourceStatusProvider,
+    DataStoreStatusProvider,
+    FlagTracker
+)
 
 if TYPE_CHECKING:
     from ldclient.client import LDClient
diff --git a/ldclient/testing/impl/datasource/test_feature_requester.py b/ldclient/testing/impl/datasource/test_feature_requester.py
index c24d3fd8..8a25ed4a 100644
--- a/ldclient/testing/impl/datasource/test_feature_requester.py
+++ b/ldclient/testing/impl/datasource/test_feature_requester.py
@@ -1,7 +1,10 @@
 from ldclient.config import Config
 from ldclient.impl.datasource.feature_requester import FeatureRequesterImpl
-from ldclient.testing.http_util import (BasicResponse, JsonResponse,
-                                        start_server)
+from ldclient.testing.http_util import (
+    BasicResponse,
+    JsonResponse,
+    start_server
+)
 from ldclient.testing.proxy_test_util import do_proxy_tests
 from ldclient.version import VERSION
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
diff --git a/ldclient/testing/impl/datasource/test_polling_processor.py b/ldclient/testing/impl/datasource/test_polling_processor.py
index c90f2543..80790563 100644
--- a/ldclient/testing/impl/datasource/test_polling_processor.py
+++ b/ldclient/testing/impl/datasource/test_polling_processor.py
@@ -9,8 +9,11 @@
 from ldclient.impl.datasource.status import DataSourceUpdateSinkImpl
 from ldclient.impl.listeners import Listeners
 from ldclient.impl.util import UnsuccessfulResponseException
-from ldclient.interfaces import (DataSourceErrorKind, DataSourceState,
-                                 DataSourceStatus)
+from ldclient.interfaces import (
+    DataSourceErrorKind,
+    DataSourceState,
+    DataSourceStatus
+)
 from ldclient.testing.builders import *
 from ldclient.testing.stub_util import MockFeatureRequester, MockResponse
 from ldclient.testing.test_util import SpyListener
diff --git a/ldclient/testing/impl/datasource/test_streaming.py b/ldclient/testing/impl/datasource/test_streaming.py
index b1fa85d4..17b9143e 100644
--- a/ldclient/testing/impl/datasource/test_streaming.py
+++ b/ldclient/testing/impl/datasource/test_streaming.py
@@ -10,16 +10,26 @@
 from ldclient.impl.datasource.streaming import StreamingUpdateProcessor
 from ldclient.impl.events.diagnostics import _DiagnosticAccumulator
 from ldclient.impl.listeners import Listeners
-from ldclient.interfaces import (DataSourceErrorKind, DataSourceState,
-                                 DataSourceStatus)
+from ldclient.interfaces import (
+    DataSourceErrorKind,
+    DataSourceState,
+    DataSourceStatus
+)
 from ldclient.testing.builders import *
-from ldclient.testing.http_util import (BasicResponse, CauseNetworkError,
-                                        SequentialHandler, start_server)
+from ldclient.testing.http_util import (
+    BasicResponse,
+    CauseNetworkError,
+    SequentialHandler,
+    start_server
+)
 from ldclient.testing.proxy_test_util import do_proxy_tests
-from ldclient.testing.stub_util import (make_delete_event,
-                                        make_invalid_put_event,
-                                        make_patch_event, make_put_event,
-                                        stream_content)
+from ldclient.testing.stub_util import (
+    make_delete_event,
+    make_invalid_put_event,
+    make_patch_event,
+    make_put_event,
+    stream_content
+)
 from ldclient.testing.test_util import SpyListener
 from ldclient.version import VERSION
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
diff --git a/ldclient/testing/impl/events/test_diagnostics.py b/ldclient/testing/impl/events/test_diagnostics.py
index 67c87238..cb3722f7 100644
--- a/ldclient/testing/impl/events/test_diagnostics.py
+++ b/ldclient/testing/impl/events/test_diagnostics.py
@@ -4,10 +4,12 @@
 from ldclient.config import Config, HTTPConfig
 from ldclient.feature_store import CacheConfig
 from ldclient.feature_store_helpers import CachingStoreWrapper
-from ldclient.impl.events.diagnostics import (_create_diagnostic_config_object,
-                                              _DiagnosticAccumulator,
-                                              create_diagnostic_id,
-                                              create_diagnostic_init)
+from ldclient.impl.events.diagnostics import (
+    _create_diagnostic_config_object,
+    _DiagnosticAccumulator,
+    create_diagnostic_id,
+    create_diagnostic_init
+)
 
 
 def test_create_diagnostic_id():
diff --git a/ldclient/testing/impl/events/test_event_processor.py b/ldclient/testing/impl/events/test_event_processor.py
index 83be14ac..2c2f462b 100644
--- a/ldclient/testing/impl/events/test_event_processor.py
+++ b/ldclient/testing/impl/events/test_event_processor.py
@@ -10,13 +10,18 @@
 from ldclient.config import Config
 from ldclient.context import Context
 from ldclient.evaluation import EvaluationDetail
-from ldclient.impl.events.diagnostics import (_DiagnosticAccumulator,
-                                              create_diagnostic_id)
+from ldclient.impl.events.diagnostics import (
+    _DiagnosticAccumulator,
+    create_diagnostic_id
+)
 from ldclient.impl.events.event_context_formatter import EventContextFormatter
 from ldclient.impl.events.event_processor import DefaultEventProcessor
-from ldclient.impl.events.types import (EventInput, EventInputCustom,
-                                        EventInputEvaluation,
-                                        EventInputIdentify)
+from ldclient.impl.events.types import (
+    EventInput,
+    EventInputCustom,
+    EventInputEvaluation,
+    EventInputIdentify
+)
 from ldclient.impl.util import timedelta_millis
 from ldclient.migrations.tracker import MigrationOpEvent
 from ldclient.migrations.types import Operation, Origin, Stage
diff --git a/ldclient/testing/impl/events/test_event_summarizer.py b/ldclient/testing/impl/events/test_event_summarizer.py
index c4b35870..d7cf4ad1 100644
--- a/ldclient/testing/impl/events/test_event_summarizer.py
+++ b/ldclient/testing/impl/events/test_event_summarizer.py
@@ -1,7 +1,9 @@
 from ldclient.context import Context
-from ldclient.impl.events.event_summarizer import (EventSummarizer,
-                                                   EventSummaryCounter,
-                                                   EventSummaryFlag)
+from ldclient.impl.events.event_summarizer import (
+    EventSummarizer,
+    EventSummaryCounter,
+    EventSummaryFlag
+)
 from ldclient.impl.events.types import *
 from ldclient.testing.builders import *
 
diff --git a/ldclient/testing/impl/test_big_segments.py b/ldclient/testing/impl/test_big_segments.py
index a850b051..bb32831e 100644
--- a/ldclient/testing/impl/test_big_segments.py
+++ b/ldclient/testing/impl/test_big_segments.py
@@ -3,8 +3,10 @@
 
 from ldclient.config import BigSegmentsConfig
 from ldclient.evaluation import BigSegmentsStatus
-from ldclient.impl.big_segments import (BigSegmentStoreManager,
-                                        _hash_for_user_key)
+from ldclient.impl.big_segments import (
+    BigSegmentStoreManager,
+    _hash_for_user_key
+)
 from ldclient.interfaces import BigSegmentStoreMetadata
 from ldclient.testing.mock_components import MockBigSegmentStore
 
diff --git a/ldclient/testing/impl/test_data_sink.py b/ldclient/testing/impl/test_data_sink.py
index 7320d1f3..d905db78 100644
--- a/ldclient/testing/impl/test_data_sink.py
+++ b/ldclient/testing/impl/test_data_sink.py
@@ -7,9 +7,13 @@
 from ldclient.impl.datasource.status import DataSourceUpdateSinkImpl
 from ldclient.impl.listeners import Listeners
 from ldclient.interfaces import DataSourceErrorKind, DataSourceState
-from ldclient.testing.builders import (FlagBuilder, FlagRuleBuilder,
-                                       SegmentBuilder, SegmentRuleBuilder,
-                                       make_clause)
+from ldclient.testing.builders import (
+    FlagBuilder,
+    FlagRuleBuilder,
+    SegmentBuilder,
+    SegmentRuleBuilder,
+    make_clause
+)
 from ldclient.testing.test_util import SpyListener
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
 
diff --git a/ldclient/testing/impl/test_evaluator_bucketing.py b/ldclient/testing/impl/test_evaluator_bucketing.py
index 5eaf684f..1f9a094b 100644
--- a/ldclient/testing/impl/test_evaluator_bucketing.py
+++ b/ldclient/testing/impl/test_evaluator_bucketing.py
@@ -3,8 +3,10 @@
 import pytest
 
 from ldclient.client import Context
-from ldclient.impl.evaluator import (_bucket_context,
-                                     _variation_index_for_context)
+from ldclient.impl.evaluator import (
+    _bucket_context,
+    _variation_index_for_context
+)
 from ldclient.impl.model import *
 from ldclient.testing.builders import *
 from ldclient.testing.impl.evaluator_util import *
diff --git a/ldclient/testing/integrations/persistent_feature_store_test_base.py b/ldclient/testing/integrations/persistent_feature_store_test_base.py
index c5e4846b..92b9cebc 100644
--- a/ldclient/testing/integrations/persistent_feature_store_test_base.py
+++ b/ldclient/testing/integrations/persistent_feature_store_test_base.py
@@ -4,9 +4,11 @@
 
 from ldclient.feature_store import CacheConfig
 from ldclient.interfaces import FeatureStore
-from ldclient.testing.feature_store_test_base import (FeatureStoreTestBase,
-                                                      FeatureStoreTester,
-                                                      StoreTestScope)
+from ldclient.testing.feature_store_test_base import (
+    FeatureStoreTestBase,
+    FeatureStoreTester,
+    StoreTestScope
+)
 from ldclient.testing.test_util import skip_database_tests
 from ldclient.versioned_data_kind import FEATURES
 
diff --git a/ldclient/testing/integrations/test_dynamodb.py b/ldclient/testing/integrations/test_dynamodb.py
index d5acde50..93664d48 100644
--- a/ldclient/testing/integrations/test_dynamodb.py
+++ b/ldclient/testing/integrations/test_dynamodb.py
@@ -1,9 +1,12 @@
 import time
 
-from ldclient.impl.integrations.dynamodb.dynamodb_big_segment_store import \
+from ldclient.impl.integrations.dynamodb.dynamodb_big_segment_store import (
     _DynamoDBBigSegmentStore
+)
 from ldclient.impl.integrations.dynamodb.dynamodb_feature_store import (
-    _DynamoDBFeatureStoreCore, _DynamoDBHelpers)
+    _DynamoDBFeatureStoreCore,
+    _DynamoDBHelpers
+)
 from ldclient.integrations import DynamoDB
 from ldclient.interfaces import UpdateProcessor
 from ldclient.testing.integrations.big_segment_store_test_base import *
diff --git a/ldclient/testing/integrations/test_redis.py b/ldclient/testing/integrations/test_redis.py
index d562f6bc..e7f74894 100644
--- a/ldclient/testing/integrations/test_redis.py
+++ b/ldclient/testing/integrations/test_redis.py
@@ -2,8 +2,9 @@
 
 import pytest
 
-from ldclient.impl.integrations.redis.redis_big_segment_store import \
+from ldclient.impl.integrations.redis.redis_big_segment_store import (
     _RedisBigSegmentStore
+)
 from ldclient.integrations import Redis
 from ldclient.testing.integrations.big_segment_store_test_base import *
 from ldclient.testing.integrations.persistent_feature_store_test_base import *
diff --git a/ldclient/testing/migrations/test_op_tracker.py b/ldclient/testing/migrations/test_op_tracker.py
index 8854be90..36e79e1f 100644
--- a/ldclient/testing/migrations/test_op_tracker.py
+++ b/ldclient/testing/migrations/test_op_tracker.py
@@ -4,10 +4,17 @@
 
 from ldclient import Context
 from ldclient.evaluation import EvaluationDetail
-from ldclient.migrations import (MigrationOpEvent, Operation, OpTracker,
-                                 Origin, Stage)
-from ldclient.testing.builders import (MigrationSettingsBuilder,
-                                       build_off_flag_with_value)
+from ldclient.migrations import (
+    MigrationOpEvent,
+    Operation,
+    OpTracker,
+    Origin,
+    Stage
+)
+from ldclient.testing.builders import (
+    MigrationSettingsBuilder,
+    build_off_flag_with_value
+)
 from ldclient.testing.test_ldclient import user
 
 
diff --git a/ldclient/testing/stub_util.py b/ldclient/testing/stub_util.py
index 766113f9..d4d45bc0 100644
--- a/ldclient/testing/stub_util.py
+++ b/ldclient/testing/stub_util.py
@@ -2,8 +2,12 @@
 from email.utils import formatdate
 
 from ldclient.impl.model import ModelEntity
-from ldclient.interfaces import (EventProcessor, FeatureRequester,
-                                 FeatureStore, UpdateProcessor)
+from ldclient.interfaces import (
+    EventProcessor,
+    FeatureRequester,
+    FeatureStore,
+    UpdateProcessor
+)
 from ldclient.testing.http_util import ChunkedResponse, JsonResponse
 
 
diff --git a/ldclient/testing/test_file_data_source.py b/ldclient/testing/test_file_data_source.py
index 250bb23b..62646d9e 100644
--- a/ldclient/testing/test_file_data_source.py
+++ b/ldclient/testing/test_file_data_source.py
@@ -13,8 +13,11 @@
 from ldclient.impl.datasource.status import DataSourceUpdateSinkImpl
 from ldclient.impl.listeners import Listeners
 from ldclient.integrations import Files
-from ldclient.interfaces import (DataSourceErrorKind, DataSourceState,
-                                 DataSourceStatus)
+from ldclient.interfaces import (
+    DataSourceErrorKind,
+    DataSourceState,
+    DataSourceStatus
+)
 from ldclient.testing.test_util import SpyListener
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
 
diff --git a/ldclient/testing/test_in_memory_feature_store.py b/ldclient/testing/test_in_memory_feature_store.py
index d468d1a1..093f9e88 100644
--- a/ldclient/testing/test_in_memory_feature_store.py
+++ b/ldclient/testing/test_in_memory_feature_store.py
@@ -2,8 +2,10 @@
 
 from ldclient.feature_store import InMemoryFeatureStore
 from ldclient.interfaces import FeatureStore
-from ldclient.testing.feature_store_test_base import (FeatureStoreTestBase,
-                                                      FeatureStoreTester)
+from ldclient.testing.feature_store_test_base import (
+    FeatureStoreTestBase,
+    FeatureStoreTester
+)
 
 
 def test_in_memory_status_checks():
diff --git a/ldclient/testing/test_ldclient.py b/ldclient/testing/test_ldclient.py
index 24eac127..997312e1 100644
--- a/ldclient/testing/test_ldclient.py
+++ b/ldclient/testing/test_ldclient.py
@@ -7,9 +7,11 @@
 from ldclient.impl.stubs import NullUpdateProcessor
 from ldclient.interfaces import UpdateProcessor
 from ldclient.testing.builders import *
-from ldclient.testing.stub_util import (CapturingFeatureStore,
-                                        MockEventProcessor,
-                                        MockUpdateProcessor)
+from ldclient.testing.stub_util import (
+    CapturingFeatureStore,
+    MockEventProcessor,
+    MockUpdateProcessor
+)
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
 
 unreachable_uri = "http://fake"
diff --git a/ldclient/testing/test_ldclient_end_to_end.py b/ldclient/testing/test_ldclient_end_to_end.py
index 08bff69f..61e245d2 100644
--- a/ldclient/testing/test_ldclient_end_to_end.py
+++ b/ldclient/testing/test_ldclient_end_to_end.py
@@ -5,10 +5,17 @@
 
 from ldclient.client import Context, LDClient
 from ldclient.config import Config, HTTPConfig
-from ldclient.testing.http_util import (BasicResponse, SequentialHandler,
-                                        start_secure_server, start_server)
-from ldclient.testing.stub_util import (make_put_event, poll_content,
-                                        stream_content)
+from ldclient.testing.http_util import (
+    BasicResponse,
+    SequentialHandler,
+    start_secure_server,
+    start_server
+)
+from ldclient.testing.stub_util import (
+    make_put_event,
+    poll_content,
+    stream_content
+)
 
 sdk_key = 'sdk-key'
 user = Context.from_dict({'key': 'userkey', 'kind': 'user'})
diff --git a/ldclient/testing/test_ldclient_events.py b/ldclient/testing/test_ldclient_events.py
index 719be7f7..3bc25917 100644
--- a/ldclient/testing/test_ldclient_events.py
+++ b/ldclient/testing/test_ldclient_events.py
@@ -2,17 +2,24 @@
 from ldclient.evaluation import EvaluationDetail
 from ldclient.feature_store import InMemoryFeatureStore
 from ldclient.impl.events.event_processor import DefaultEventProcessor
-from ldclient.impl.events.types import (EventInputCustom, EventInputEvaluation,
-                                        EventInputIdentify)
+from ldclient.impl.events.types import (
+    EventInputCustom,
+    EventInputEvaluation,
+    EventInputIdentify
+)
 from ldclient.impl.stubs import NullEventProcessor
 from ldclient.migrations import Operation, OpTracker, Origin, Stage
 from ldclient.migrations.tracker import MigrationOpEvent
 from ldclient.testing.builders import *
 from ldclient.testing.stub_util import MockUpdateProcessor
-from ldclient.testing.test_ldclient import (context, make_client,
-                                            make_ldd_client,
-                                            make_offline_client,
-                                            unreachable_uri, user)
+from ldclient.testing.test_ldclient import (
+    context,
+    make_client,
+    make_ldd_client,
+    make_offline_client,
+    unreachable_uri,
+    user
+)
 from ldclient.versioned_data_kind import FEATURES
 
 
diff --git a/ldclient/testing/test_ldclient_listeners.py b/ldclient/testing/test_ldclient_listeners.py
index 7693d36d..2ad697db 100644
--- a/ldclient/testing/test_ldclient_listeners.py
+++ b/ldclient/testing/test_ldclient_listeners.py
@@ -5,9 +5,12 @@
 from ldclient.interfaces import DataSourceState
 from ldclient.testing.http_util import start_server
 from ldclient.testing.mock_components import MockBigSegmentStore
-from ldclient.testing.stub_util import (MockEventProcessor,
-                                        MockUpdateProcessor, make_put_event,
-                                        stream_content)
+from ldclient.testing.stub_util import (
+    MockEventProcessor,
+    MockUpdateProcessor,
+    make_put_event,
+    stream_content
+)
 
 
 def test_big_segment_store_status_unavailable():
diff --git a/ldclient/testing/test_ldclient_plugin.py b/ldclient/testing/test_ldclient_plugin.py
index fb5a130c..58062d1b 100644
--- a/ldclient/testing/test_ldclient_plugin.py
+++ b/ldclient/testing/test_ldclient_plugin.py
@@ -6,8 +6,12 @@
 from ldclient.client import LDClient
 from ldclient.config import Config
 from ldclient.context import Context
-from ldclient.hook import (EvaluationDetail, EvaluationSeriesContext, Hook,
-                           Metadata)
+from ldclient.hook import (
+    EvaluationDetail,
+    EvaluationSeriesContext,
+    Hook,
+    Metadata
+)
 from ldclient.plugin import EnvironmentMetadata, Plugin, PluginMetadata
 
 
diff --git a/ldclient/testing/test_plugin.py b/ldclient/testing/test_plugin.py
index 755bb9dd..5ce0da52 100644
--- a/ldclient/testing/test_plugin.py
+++ b/ldclient/testing/test_plugin.py
@@ -7,10 +7,19 @@
 from unittest.mock import Mock
 
 from ldclient.config import Config
-from ldclient.hook import (EvaluationDetail, EvaluationSeriesContext, Hook,
-                           Metadata)
-from ldclient.plugin import (ApplicationMetadata, EnvironmentMetadata, Plugin,
-                             PluginMetadata, SdkMetadata)
+from ldclient.hook import (
+    EvaluationDetail,
+    EvaluationSeriesContext,
+    Hook,
+    Metadata
+)
+from ldclient.plugin import (
+    ApplicationMetadata,
+    EnvironmentMetadata,
+    Plugin,
+    PluginMetadata,
+    SdkMetadata
+)
 
 
 class ExampleHook(Hook):
diff --git a/pyproject.toml b/pyproject.toml
index 7bb52804..1f149bd3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -91,6 +91,9 @@ ignore_missing_imports = true
 install_types = true
 non_interactive = true
 
+[tool.isort]
+multi_line_output = 3
+
 
 [tool.pytest.ini_options]
 addopts = ["-ra"]