Merge branch 'develop' into feat/short

freqtrade/exchange/exchange.py

@@ -507,7 +507,7 @@ class Exchange:
         if startup_candles + 5 > candle_limit:
             raise OperationalException(
                 f"This strategy requires {startup_candles} candles to start. "
-                f"{self.name} only provides {candle_limit} for {timeframe}.")
+                f"{self.name} only provides {candle_limit - 5} for {timeframe}.")
 
     def validate_trading_mode_and_collateral(
         self,
@@ -569,7 +569,7 @@ class Exchange:
                 precision = self.markets[pair]['precision']['price']
                 missing = price % precision
                 if missing != 0:
-                    price = price - missing + precision
+                    price = round(price - missing + precision, 10)
             else:
                 symbol_prec = self.markets[pair]['precision']['price']
                 big_price = price * pow(10, symbol_prec)
@@ -1128,7 +1128,7 @@ class Exchange:
             ticker_rate = ticker[conf_strategy['price_side']]
             if ticker['last'] and ticker_rate:
                 if side == 'buy' and ticker_rate > ticker['last']:
-                    balance = conf_strategy['ask_last_balance']
+                    balance = conf_strategy.get('ask_last_balance', 0.0)
                     ticker_rate = ticker_rate + balance * (ticker['last'] - ticker_rate)
                 elif side == 'sell' and ticker_rate < ticker['last']:
                     balance = conf_strategy.get('bid_last_balance', 0.0)

freqtrade/exchange/gateio.py

@@ -2,6 +2,7 @@
 import logging
 from typing import Dict, List
 
+from freqtrade.exceptions import OperationalException
 from freqtrade.exchange import Exchange
 
 
@@ -25,3 +26,10 @@ class Gateio(Exchange):
     _headers = {'X-Gate-Channel-Id': 'freqtrade'}
 
     funding_fee_times: List[int] = [0, 8, 16]  # hours of the day
+
+    def validate_ordertypes(self, order_types: Dict) -> None:
+        super().validate_ordertypes(order_types)
+
+        if any(v == 'market' for k, v in order_types.items()):
+            raise OperationalException(
+                f'Exchange {self.name} does not support market orders.')