Add errorsupression to safe wrapper

freqtrade/strategy/strategy_wrapper.py

@@ -5,7 +5,7 @@ from freqtrade.exceptions import StrategyError
 logger = logging.getLogger(__name__)
 
 
-def strategy_safe_wrapper(f, message: str = "", default_retval=None):
+def strategy_safe_wrapper(f, message: str = "", default_retval=None, supress_error=False):
     """
     Wrapper around user-provided methods and functions.
     Caches all exceptions and returns either the default_retval (if it's not None) or raises
@@ -20,7 +20,7 @@ def strategy_safe_wrapper(f, message: str = "", default_retval=None):
                 f"Strategy caused the following exception: {error}"
                 f"{f}"
             )
-            if default_retval is None:
+            if default_retval is None and not supress_error:
                 raise StrategyError(str(error)) from error
             return default_retval
         except Exception as error:
@@ -28,7 +28,7 @@ def strategy_safe_wrapper(f, message: str = "", default_retval=None):
                 f"{message}"
                 f"Unexpected error {error} calling {f}"
             )
-            if default_retval is None:
+            if default_retval is None and not supress_error:
                 raise StrategyError(str(error)) from error
             return default_retval
 

tests/strategy/test_interface.py

@@ -448,6 +448,11 @@ def test_strategy_safe_wrapper_error(caplog, error):
     assert isinstance(ret, bool)
     assert ret
 
+    caplog.clear()
+    # Test supressing error
+    ret = strategy_safe_wrapper(failing_method, message='DeadBeef', supress_error=True)()
+    assert log_has_re(r'DeadBeef.*', caplog)
+
 
 @pytest.mark.parametrize('value', [
     1, 22, 55, True, False, {'a': 1, 'b': '112'},