Check can_short in live-mode as well.

freqtrade/resolvers/strategy_resolver.py

@@ -177,7 +177,8 @@ class StrategyResolver(IResolver):
             raise ImportError(
                 "Short strategies cannot run in spot markets. Please make sure that this "
                 "is the correct strategy and that your trading mode configuration is correct. "
-                "You can run this strategy by setting `can_short=False` in your strategy."
+                "You can run this strategy in spot markets by setting `can_short=False`"
+                " in your strategy. Please note that short signals will be ignored in that case."
                 )
 
     @staticmethod

freqtrade/strategy/interface.py

@@ -759,7 +759,7 @@ class IStrategy(ABC, HyperStrategyMixin):
 
         enter_long = latest[SignalType.ENTER_LONG.value] == 1
         exit_long = latest.get(SignalType.EXIT_LONG.value, 0) == 1
-        enter_short = latest.get(SignalType.ENTER_SHORT.value, 0) == 1
+        enter_short = latest.get(SignalType.ENTER_SHORT.value, 0 == 1)
         exit_short = latest.get(SignalType.EXIT_SHORT.value, 0) == 1
 
         enter_signal: Optional[SignalDirection] = None
@@ -768,6 +768,7 @@ class IStrategy(ABC, HyperStrategyMixin):
             enter_signal = SignalDirection.LONG
             enter_tag_value = latest.get(SignalTagType.ENTER_TAG.value, None)
         if (self.config.get('trading_mode', TradingMode.SPOT) != TradingMode.SPOT
+                and self.can_short
                 and enter_short == 1 and not any([exit_short, enter_long])):
             enter_signal = SignalDirection.SHORT
             enter_tag_value = latest.get(SignalTagType.ENTER_TAG.value, None)

tests/strategy/test_interface.py

@@ -78,6 +78,12 @@ def test_returns_latest_signal(ohlcv_history):
     assert _STRATEGY.get_entry_signal('ETH/BTC', '5m', mocked_history) == (None, None)
 
     _STRATEGY.config['trading_mode'] = 'futures'
+    # Short signal get's ignored as can_short is not set.
+    assert _STRATEGY.get_entry_signal(
+        'ETH/BTC', '5m', mocked_history) == (None, None)
+
+    _STRATEGY.can_short = True
+
     assert _STRATEGY.get_entry_signal(
         'ETH/BTC', '5m', mocked_history) == (SignalDirection.SHORT, 'sell_signal_01')
     assert _STRATEGY.get_exit_signal('ETH/BTC', '5m', mocked_history) == (False, False, None)
@@ -93,6 +99,7 @@ def test_returns_latest_signal(ohlcv_history):
     assert _STRATEGY.get_exit_signal(
         'ETH/BTC', '5m', mocked_history, True) == (False, True, 'sell_signal_02')
 
+    _STRATEGY.can_short = False
     _STRATEGY.config['trading_mode'] = 'spot'