only doing this if the category is set

freqtrade/plugins/pairlist/MarketCapPairList.py

@@ -34,11 +34,9 @@ class MarketCapPairList(IPairList):
         self._stake_currency = self._config["stake_currency"]
         self._number_assets = self._pairlistconfig["number_assets"]
         self._max_rank = self._pairlistconfig.get("max_rank", 30)
-        self._refresh_period = self._pairlistconfig.get(
+        self._refresh_period = self._pairlistconfig.get("refresh_period", 86400)
-            "refresh_period", 86400)
         self._category = self._pairlistconfig.get("category", None)
-        self._marketcap_cache: TTLCache = TTLCache(
+        self._marketcap_cache: TTLCache = TTLCache(maxsize=1, ttl=self._refresh_period)
-            maxsize=1, ttl=self._refresh_period)
         self._def_candletype = self._config["candle_type_def"]
 
         _coingecko_config = self._config.get("coingecko", {})
@@ -48,9 +46,17 @@ class MarketCapPairList(IPairList):
             is_demo=_coingecko_config.get("is_demo", True),
         )
 
+        if self._category:
+            categories = self._coingecko.get_coins_categories_list()
+            category_ids = [cat["category_id"] for cat in categories]
+
+            if self._category not in category_ids:
+                raise OperationalException(
+                    f"category not in coingecko category list you can choose from {category_ids}"
+                )
+
         if self._max_rank > 250:
-            raise OperationalException(
+            raise OperationalException("This filter only support marketcap rank up to 250.")
-                "This filter only support marketcap rank up to 250.")
 
     @property
     def needstickers(self) -> bool:
@@ -143,7 +149,6 @@ class MarketCapPairList(IPairList):
         marketcap_list = self._marketcap_cache.get("marketcap")
 
         if marketcap_list is None:
-
             data = self._coingecko.get_coins_markets(
                 vs_currency="usd",
                 order="market_cap_desc",
@@ -151,7 +156,7 @@ class MarketCapPairList(IPairList):
                 page="1",
                 sparkline="false",
                 locale="en",
-                **({"category": self._category} if self._category else {})
+                **({"category": self._category} if self._category else {}),
             )
             if data:
                 marketcap_list = [row["symbol"] for row in data]
@@ -165,11 +170,11 @@ class MarketCapPairList(IPairList):
             if market == "futures":
                 pair_format += f":{self._stake_currency.upper()}"
 
-            top_marketcap = marketcap_list[: self._max_rank:]
+            top_marketcap = marketcap_list[: self._max_rank :]
 
             for mc_pair in top_marketcap:
                 test_pair = f"{mc_pair.upper()}/{pair_format}"
-                if test_pair in pairlist and test_pair not in filtered_pairlist:
+                if test_pair in pairlist:
                     filtered_pairlist.append(test_pair)
                     if len(filtered_pairlist) == self._number_assets:
                         break