Simplify class setups without inheritance

freqtrade/mixins/logging_mixin.py

@@ -3,7 +3,7 @@ from typing import Callable
 from cachetools import TTLCache, cached
 
 
-class LoggingMixin():
+class LoggingMixin:
     """
     Logging Mixin
     Shows similar messages only once every `refresh_period`.

freqtrade/optimize/hyperopt_tools.py

@@ -35,7 +35,7 @@ def hyperopt_serializer(x):
     return str(x)
 
 
-class HyperoptStateContainer():
+class HyperoptStateContainer:
     """ Singleton class to track state of hyperopt"""
     state: HyperoptState = HyperoptState.OPTIMIZE
 
@@ -44,7 +44,7 @@ class HyperoptStateContainer():
         cls.state = value
 
 
-class HyperoptTools():
+class HyperoptTools:
 
     @staticmethod
     def get_strategy_filename(config: Config, strategy_name: str) -> Optional[Path]:

freqtrade/persistence/key_value_store.py

@@ -42,7 +42,7 @@ class _KeyValueStoreModel(ModelBase):
     int_value: Mapped[Optional[int]]
 
 
-class KeyValueStore():
+class KeyValueStore:
     """
     Generic bot-wide, persistent key-value store
     Can be used to store generic values, e.g. very first bot startup time.

freqtrade/persistence/pairlock_middleware.py

@@ -11,7 +11,7 @@ from freqtrade.persistence.models import PairLock
 logger = logging.getLogger(__name__)
 
 
-class PairLocks():
+class PairLocks:
     """
     Pairlocks middleware class
     Abstracts the database layer away so it becomes optional - which will be necessary to support

freqtrade/persistence/trade_model.py

@@ -283,7 +283,7 @@ class Order(ModelBase):
         return Order.session.scalars(select(Order).filter(Order.order_id == order_id)).first()
 
 
-class LocalTrade():
+class LocalTrade:
     """
     Trade database model.
     Used in backtesting - must be aligned to Trade model!

freqtrade/plugins/protectionmanager.py

@@ -15,7 +15,7 @@ from freqtrade.resolvers import ProtectionResolver
 logger = logging.getLogger(__name__)
 
 
-class ProtectionManager():
+class ProtectionManager:
 
     def __init__(self, config: Config, protections: List) -> None:
         self._config = config

freqtrade/rpc/api_server/webserver_bgwork.py

@@ -14,7 +14,7 @@ class JobsContainer(TypedDict):
     error: Optional[str]
 
 
-class ApiBG():
+class ApiBG:
     # Backtesting type: Backtesting
     bt: Dict[str, Any] = {
         'bt': None,

freqtrade/strategy/interface.py

@@ -168,7 +168,7 @@ class IStrategy(ABC, HyperStrategyMixin):
                 download_all_data_for_training(self.dp, self.config)
         else:
             # Gracious failures if freqAI is disabled but "start" is called.
-            class DummyClass():
+            class DummyClass:
                 def start(self, *args, **kwargs):
                     raise OperationalException(
                         'freqAI is not enabled. '

scripts/rest_client.py

@@ -29,7 +29,7 @@ logging.basicConfig(
 logger = logging.getLogger("ft_rest_client")
 
 
-class FtRestClient():
+class FtRestClient:
 
     def __init__(self, serverurl, username=None, password=None):
 

tests/exchange/test_ccxt_compat.py

@@ -342,7 +342,7 @@ def exchange_futures(request, exchange_conf, class_mocker):
 
 
 @pytest.mark.longrun
-class TestCCXTExchange():
+class TestCCXTExchange:
 
     def test_load_markets(self, exchange: EXCHANGE_FIXTURE_TYPE):
         exch, exchangename = exchange