chore: minor nitpick changes

freqtrade/rpc/api_server/api_backtest.py

@@ -374,11 +374,11 @@ def api_get_backtest_wallet(file: str, strategy: str, config=Depends(get_config)
     file_abs = (bt_results_base / file).with_suffix(".zip")
     # Ensure file is in backtest_results directory
     if not is_file_in_dir(file_abs, bt_results_base):
-        raise HTTPException(status_code=404, detail="File not found.")
+        raise HTTPException(status_code=400, detail="Unable to retrieve wallet history.")
 
     results = get_backtest_wallet_change(file_abs, strategy)
     if results is None:
-        raise HTTPException(status_code=404, detail="File not found.")
+        raise HTTPException(status_code=404, detail="Unable to retrieve wallet history.")
     # Consolidate the wallet to the base currency
     results.loc[:, "total"] = results["price"] * results["balance"]
     results = results.groupby(["date", "__date_ts"]).agg({"total": "sum"}).reset_index()

freqtrade/wallets.py

@@ -453,7 +453,7 @@ class Wallets:
         if self._is_backtest:
             # only record in live mode.
             return
-        timestamp = dt_floor_day(datetime.now())
+        timestamp = dt_floor_day(dt_now())
 
         # Record total balances for all currencies
         for wallet in self.get_all_balances().values():