diff --git a/freqtrade/data/converter/converter.py b/freqtrade/data/converter/converter.py
index b995b94af..0dbfe55a5 100644
--- a/freqtrade/data/converter/converter.py
+++ b/freqtrade/data/converter/converter.py
@@ -456,8 +456,7 @@ def ohlcv_fill_up_missing_data(dataframe: DataFrame, timeframe: str, pair: str)
     df.reset_index(inplace=True)
     len_before = len(dataframe)
     len_after = len(df)
-    pct_missing = (len_after - len_before) / \
-        len_before if len_before > 0 else 0
+    pct_missing = (len_after - len_before) / len_before if len_before > 0 else 0
     if len_before != len_after:
         message = (f"Missing data fillup for {pair}: before: {len_before} - after: {len_after}"
                    f" - {pct_missing:.2%}")
@@ -502,8 +501,7 @@ def trim_dataframes(preprocessed: Dict[str, DataFrame], timerange,
     processed: Dict[str, DataFrame] = {}
 
     for pair, df in preprocessed.items():
-        trimed_df = trim_dataframe(
-            df, timerange, startup_candles=startup_candles)
+        trimed_df = trim_dataframe(df, timerange, startup_candles=startup_candles)
         if not trimed_df.empty:
             processed[pair] = trimed_df
         else: