No specific handling for trailing_stop_positive

freqtrade/resolvers/strategy_resolver.py

@@ -95,7 +95,10 @@ class StrategyResolver(IResolver):
             logger.info("Override strategy '%s' with value in config file: %s.",
                         attribute, config[attribute])
         elif hasattr(self.strategy, attribute):
-            config[attribute] = getattr(self.strategy, attribute)
+            val = getattr(self.strategy, attribute)
+            # None's cannot exist in the config, so do not copy them
+            if val is not None:
+                config[attribute] = val
         # Explicitly check for None here as other "falsy" values are possible
         elif default is not None:
             setattr(self.strategy, attribute, default)

freqtrade/strategy/interface.py

@@ -78,7 +78,7 @@ class IStrategy(ABC):
 
     # trailing stoploss
     trailing_stop: bool = False
-    trailing_stop_positive: float
+    trailing_stop_positive: Optional[float] = None
     trailing_stop_positive_offset: float = 0.0
     trailing_only_offset_is_reached = False
 
@@ -361,8 +361,7 @@ class IStrategy(ABC):
 
             # Don't update stoploss if trailing_only_offset_is_reached is true.
             if not (self.trailing_only_offset_is_reached and high_profit < sl_offset):
-                # Specific handling for trailing_stop_positive
-                if 'trailing_stop_positive' in self.__dict__ and high_profit > sl_offset:
+                if self.trailing_stop_positive is not None and high_profit > sl_offset:
                     # Ignore mypy error check in configuration that this is a float
                     stop_loss_value = self.trailing_stop_positive
                     logger.debug(f"{trade.pair} - Using positive stoploss: {stop_loss_value} "