diff --git a/freqtrade/strategy/interface.py b/freqtrade/strategy/interface.py
index e9e9e6d7b..6bf60fa81 100644
--- a/freqtrade/strategy/interface.py
+++ b/freqtrade/strategy/interface.py
@@ -35,7 +35,8 @@ class IStrategy(ABC):
         :param dataframe: Raw data from the exchange and parsed by parse_ticker_dataframe()
         :return: a Dataframe with all mandatory indicators for the strategies
         """
-        warnings.warn("deprecated - please replace this method with advise_indicators!", DeprecationWarning)
+        warnings.warn("deprecated - please replace this method with advise_indicators!",
+                      DeprecationWarning)
         return dataframe
 
     def populate_buy_trend(self, dataframe: DataFrame) -> DataFrame:
@@ -44,7 +45,8 @@ class IStrategy(ABC):
         :param dataframe: DataFrame
         :return: DataFrame with buy column
         """
-        warnings.warn("deprecated - please replace this method with advise_buy!", DeprecationWarning)
+        warnings.warn("deprecated - please replace this method with advise_buy!",
+                      DeprecationWarning)
         dataframe.loc[(), 'buy'] = 0
         return dataframe
 
@@ -54,7 +56,8 @@ class IStrategy(ABC):
         :param dataframe: DataFrame
         :return: DataFrame with sell column
         """
-        warnings.warn("deprecated - please replace this method with advise_sell!", DeprecationWarning)
+        warnings.warn("deprecated - please replace this method with advise_sell!",
+                      DeprecationWarning)
         dataframe.loc[(), 'sell'] = 0
         return dataframe
 
diff --git a/freqtrade/strategy/resolver.py b/freqtrade/strategy/resolver.py
index 6244dc4e7..5d3f0e331 100644
--- a/freqtrade/strategy/resolver.py
+++ b/freqtrade/strategy/resolver.py
@@ -35,7 +35,6 @@ class StrategyResolver(object):
         self.strategy: IStrategy = self._load_strategy(strategy_name,
                                                        extra_dir=config.get('strategy_path'))
 
-
         # Set attributes
         # Check if we need to override configuration
         if 'minimal_roi' in config: