Merge branch 'develop' into keep_dataframe_noapi

freqtrade/data/dataprovider.py

@@ -13,7 +13,7 @@ from pandas import DataFrame
 
 from freqtrade.constants import ListPairsWithTimeframes, PairWithTimeframe
 from freqtrade.data.history import load_pair_history
-from freqtrade.exceptions import DependencyException, OperationalException
+from freqtrade.exceptions import ExchangeError, OperationalException
 from freqtrade.exchange import Exchange
 from freqtrade.state import RunMode
 
@@ -132,7 +132,7 @@ class DataProvider:
         """
         try:
             return self._exchange.fetch_ticker(pair)
-        except DependencyException:
+        except ExchangeError:
             return {}
 
     def orderbook(self, pair: str, maximum: int) -> Dict[str, List]:

freqtrade/data/history/history_utils.py

@@ -270,6 +270,11 @@ def _download_trades_history(exchange: Exchange,
         # DEFAULT_TRADES_COLUMNS: 0 -> timestamp
         # DEFAULT_TRADES_COLUMNS: 1 -> id
 
+        if trades and since < trades[0][0]:
+            # since is before the first trade
+            logger.info(f"Start earlier than available data. Redownloading trades for {pair}...")
+            trades = []
+
         from_id = trades[-1][1] if trades else None
         if trades and since < trades[-1][0]:
             # Reset since to the last available point