removed binance constructor, added fill_leverage_brackets call to exchange constructor

freqtrade/exchange/binance.py

@@ -2,7 +2,7 @@
 import json
 import logging
 from pathlib import Path
-from typing import Any, Dict, List, Optional, Tuple
+from typing import Dict, List, Optional, Tuple
 
 import arrow
 import ccxt
@@ -38,12 +38,6 @@ class Binance(Exchange):
         # (TradingMode.FUTURES, Collateral.ISOLATED) # TODO-lev: Uncomment once supported
     ]
 
-    def __init__(self, config: Dict[str, Any], validate: bool = True) -> None:
-        super().__init__(config, validate)
-        self._leverage_brackets: Dict = {}
-        if self.trading_mode != TradingMode.SPOT:
-            self.fill_leverage_brackets()
-
     @property
     def _ccxt_config(self) -> Dict:
         # Parameters to add directly to ccxt sync/async initialization.

freqtrade/exchange/exchange.py

@@ -179,6 +179,10 @@ class Exchange:
         self.markets_refresh_interval: int = exchange_config.get(
             "markets_refresh_interval", 60) * 60
 
+        self._leverage_brackets: Dict = {}
+        if self.trading_mode != TradingMode.SPOT:
+            self.fill_leverage_brackets()
+
     def __del__(self):
         """
         Destructor - clean up async stuff
@@ -1635,7 +1639,7 @@ class Exchange:
         """
             Assigns property _leverage_brackets to a dictionary of information about the leverage
             allowed on each pair
-            Not used by most exchanges, only used by Binance at time of writing
+            Not used if the exchange has a static max leverage value for the account or each pair
         """
         return