Merge pull request #3939 from drdux/historic-pair

Historic pair

docs/configuration.md

@@ -87,6 +87,7 @@ Mandatory parameters are marked as **Required**, which means that they are requi
 | `exchange.ccxt_sync_config` | Additional CCXT parameters passed to the regular (sync) ccxt instance. Parameters may differ from exchange to exchange and are documented in the [ccxt documentation](https://ccxt.readthedocs.io/en/latest/manual.html#instantiation) <br> **Datatype:** Dict
 | `exchange.ccxt_async_config` | Additional CCXT parameters passed to the async ccxt instance. Parameters may differ from exchange to exchange  and are documented in the [ccxt documentation](https://ccxt.readthedocs.io/en/latest/manual.html#instantiation) <br> **Datatype:** Dict
 | `exchange.markets_refresh_interval` | The interval in minutes in which markets are reloaded. <br>*Defaults to `60` minutes.* <br> **Datatype:** Positive Integer
+| `exchange.skip_pair_validation` | Skip pairlist validation on startup.<br>*Defaults to `false`<br> **Datatype:** Boolean
 | `edge.*` | Please refer to [edge configuration document](edge.md) for detailed explanation.
 | `experimental.block_bad_exchanges` | Block exchanges known to not work with freqtrade. Leave on default unless you want to test if that exchange works now. <br>*Defaults to `true`.* <br> **Datatype:** Boolean
 | `pairlists` | Define one or more pairlists to be used. [More information below](#pairlists-and-pairlist-handlers). <br>*Defaults to `StaticPairList`.*  <br> **Datatype:** List of Dicts

docs/includes/pairlists.md

@@ -35,6 +35,11 @@ It uses configuration from `exchange.pair_whitelist` and `exchange.pair_blacklis
     ],
 ```
 
+By default, only currently enabled pairs are allowed.
+To skip pair validation against active markets, set `"allow_inactive": true` within the `StaticPairList` configuration.
+This can be useful for backtesting expired pairs (like quarterly spot-markets).
+This option must be configured along with `exchange.skip_pair_validation` in the exchange configuration.
+
 #### Volume Pair List
 
 `VolumePairList` employs sorting/filtering of pairs by their trading volume. It selects `number_assets` top pairs with sorting based on the `sort_key` (which can only be `quoteVolume`).

freqtrade/exchange/exchange.py

@@ -124,7 +124,8 @@ class Exchange:
 
             # Check if all pairs are available
             self.validate_stakecurrency(config['stake_currency'])
-            self.validate_pairs(config['exchange']['pair_whitelist'])
+            if not exchange_config.get('skip_pair_validation'):
+                self.validate_pairs(config['exchange']['pair_whitelist'])
             self.validate_ordertypes(config.get('order_types', {}))
             self.validate_order_time_in_force(config.get('order_time_in_force', {}))
             self.validate_required_startup_candles(config.get('startup_candle_count', 0))

freqtrade/pairlist/StaticPairList.py

@@ -24,6 +24,8 @@ class StaticPairList(IPairList):
             raise OperationalException(f"{self.name} can only be used in the first position "
                                        "in the list of Pairlist Handlers.")
 
+        self._allow_inactive = self._pairlistconfig.get('allow_inactive', False)
+
     @property
     def needstickers(self) -> bool:
         """
@@ -47,7 +49,10 @@ class StaticPairList(IPairList):
         :param tickers: Tickers (from exchange.get_tickers()).
         :return: List of pairs
         """
-        return self._whitelist_for_active_markets(self._config['exchange']['pair_whitelist'])
+        if self._allow_inactive:
+            return self._config['exchange']['pair_whitelist']
+        else:
+            return self._whitelist_for_active_markets(self._config['exchange']['pair_whitelist'])
 
     def filter_pairlist(self, pairlist: List[str], tickers: Dict) -> List[str]:
         """