use a usual attribute instead of caching a function return value

src/kraken_infinity_grid/gridbot.py

@@ -11,7 +11,6 @@
 import traceback
 from datetime import datetime, timedelta
 from decimal import Decimal
-from functools import cache
 from logging import getLogger
 from time import sleep
 from types import SimpleNamespace
@@ -137,7 +136,7 @@ def __init__(
     ) -> None:
         super().__init__(key=key, secret=secret)
         LOG.info("Initiate the Kraken Infinity Grid Algorithm instance...")
-        LOG.info("Config: %s", config)
+        LOG.debug("Config: %s", config)
         self.init_done: bool = False
         self.dry_run: bool = dry_run
 
@@ -151,6 +150,9 @@ def __init__(
         ##
         self.interval: float = float(config["interval"])
         self.amount_per_grid: float = float(config["amount_per_grid"])
+
+        self.amount_per_grid_plus_fee: float | None = None
+
         self.max_investment: float = config["max_investment"]
         self.n_open_buy_orders: int = config["n_open_buy_orders"]
         self.fee: float | None = None
@@ -570,12 +572,6 @@ def investment(self: Self) -> float:
             orders=self.orderbook.get_orders(),
         )
 
-    @property
-    @cache  # noqa: B019
-    def amount_per_grid_plus_fee(self: Self) -> float:
-        """Returns the estimated quote volume of a newly placed buy order."""
-        return self.amount_per_grid * (1 + self.fee)
-
     @property
     def max_investment_reached(self: Self) -> bool:
         """Returns True if the maximum investment is reached."""

src/kraken_infinity_grid/setup.py

@@ -197,11 +197,15 @@ def __check_asset_pair_parameter(self: Self) -> None:
 
         self.__s.xsymbol = next(iter(pair_data.keys()))
         data = pair_data[self.__s.xsymbol]
-        self.__s.fee = float(data["fees_maker"][0][1]) / 100
+
         self.__s.altname = data["altname"]
         self.__s.zbase_currency = data["base"]  # XXBT
         self.__s.xquote_currency = data["quote"]  # ZEUR
         self.__s.cost_decimals = data["cost_decimals"]  # 5, i.e., 0.00001 EUR
+        self.__s.fee = float(data["fees_maker"][0][1]) / 100
+        self.__s.amount_per_grid_plus_fee = self.__s.amount_per_grid * (
+            1 + self.__s.fee
+        )
 
     def __check_configuration_changes(self: Self) -> None:
         """

tests/test_gridbot.py

@@ -207,6 +207,7 @@ def test_max_investment_reached(instance: KrakenInfinityGridBot) -> None:
     instance.amount_per_grid = 1000.0
     instance.fee = 0.01
     instance.max_investment = 20000.0
+    instance.amount_per_grid_plus_fee = instance.amount_per_grid * (1 + instance.fee)
 
     # Case where max investment is not reached
     instance.orderbook.get_orders.return_value = [
@@ -223,27 +224,6 @@ def test_max_investment_reached(instance: KrakenInfinityGridBot) -> None:
     assert instance.max_investment_reached
 
 
-def test_amount_per_grid_plus_fee(instance: KrakenInfinityGridBot) -> None:
-    """Test the amount_per_grid_plus_fee property."""
-    instance.amount_per_grid = 100
-    instance.fee = 0.01
-    assert instance.amount_per_grid_plus_fee == 101.0
-
-    # Ensure that caching works, i.e., the property is not recomputed
-    instance.amount_per_grid = 1000
-    assert instance.amount_per_grid_plus_fee == 101.0
-
-    type(instance).amount_per_grid_plus_fee.fget.cache_clear()
-    instance.amount_per_grid = 200
-    instance.fee = 0.02
-    assert instance.amount_per_grid_plus_fee == 204.0
-
-    type(instance).amount_per_grid_plus_fee.fget.cache_clear()
-    instance.amount_per_grid = 200
-    instance.fee = 0.00
-    assert instance.amount_per_grid_plus_fee == 200.0
-
-
 # ==============================================================================
 # on_message
 ##

tests/test_setup.py

@@ -245,6 +245,7 @@ def test_check_asset_pair_parameter(
         },
     }
     strategy.symbol = "BTC/USD"
+    strategy.amount_per_grid = 100
 
     setup_manager._SetupManager__check_asset_pair_parameter()
 
@@ -253,6 +254,7 @@ def test_check_asset_pair_parameter(
     assert strategy.zbase_currency == "XXBT"
     assert strategy.xquote_currency == "ZEUR"
     assert strategy.cost_decimals == 5
+    assert strategy.amount_per_grid_plus_fee == pytest.approx(100.26)
 
 
 def test_check_configuration_changes(