Show correct valueerror message

2019-08-02 09:37:59 +02:00 · 2019-08-02 09:37:59 +02:00 · 76d22bc743
commit 76d22bc743
parent 4c005e7086
1 changed files with 1 additions and 1 deletions
--- a/freqtrade/data/btanalysis.py
+++ b/freqtrade/data/btanalysis.py
@ -30,7 +30,7 @@ def load_backtest_data(filename) -> pd.DataFrame:
        filename = Path(filename)

    if not filename.is_file():
-        raise ValueError("File {filename} does not exist.")
+        raise ValueError(f"File {filename} does not exist.")

    with filename.open() as file:
        data = json_load(file)