Fix mypy errors due to new version

freqtrade/freqtradebot.py

@@ -58,8 +58,8 @@ class FreqtradeBot:
         # Cache values for 1800 to avoid frequent polling of the exchange for prices
         # Caching only applies to RPC methods, so prices for open trades are still
         # refreshed once every iteration.
-        self._sell_rate_cache = TTLCache(maxsize=100, ttl=1800)
-        self._buy_rate_cache = TTLCache(maxsize=100, ttl=1800)
+        self._sell_rate_cache: TTLCache = TTLCache(maxsize=100, ttl=1800)
+        self._buy_rate_cache: TTLCache = TTLCache(maxsize=100, ttl=1800)
 
         self.strategy: IStrategy = StrategyResolver.load_strategy(self.config)
 

freqtrade/misc.py

@@ -56,8 +56,8 @@ def file_dump_json(filename: Path, data: Any, is_zip: bool = False, log: bool =
         if log:
             logger.info(f'dumping json to "{filename}"')
 
-        with gzip.open(filename, 'w') as fp:
-            rapidjson.dump(data, fp, default=str, number_mode=rapidjson.NM_NATIVE)
+        with gzip.open(filename, 'w') as fpz:
+            rapidjson.dump(data, fpz, default=str, number_mode=rapidjson.NM_NATIVE)
     else:
         if log:
             logger.info(f'dumping json to "{filename}"')

freqtrade/pairlist/IPairList.py

@@ -36,7 +36,7 @@ class IPairList(ABC):
         self._pairlist_pos = pairlist_pos
         self.refresh_period = self._pairlistconfig.get('refresh_period', 1800)
         self._last_refresh = 0
-        self._log_cache = TTLCache(maxsize=1024, ttl=self.refresh_period)
+        self._log_cache: TTLCache = TTLCache(maxsize=1024, ttl=self.refresh_period)
 
     @property
     def name(self) -> str: