Explicitly raise ValueError if trades are empty

2020-05-21 07:12:23 +02:00
parent ff7bcb5aae
commit 1a984ac677
2 changed files with 7 additions and 0 deletions
--- a/freqtrade/data/btanalysis.py
+++ b/freqtrade/data/btanalysis.py
@@ -194,7 +194,10 @@ def create_cum_profit(df: pd.DataFrame, trades: pd.DataFrame, col_name: str,
    :param col_name: Column name that will be assigned the results
    :param timeframe: Timeframe used during the operations
    :return: Returns df with one additional column, col_name, containing the cumulative profit.
+    :raise: ValueError if trade-dataframe was found empty.
    """
+    if len(trades) == 0:
+        raise ValueError("Trade dataframe empty.")
    from freqtrade.exchange import timeframe_to_minutes
    timeframe_minutes = timeframe_to_minutes(timeframe)
    # Resample to timeframe to make sure trades match candles