Merge pull request #2606 from freqtrade/volume_tester

Subcommand: test-pairlist

freqtrade/configuration/arguments.py

@@ -37,6 +37,8 @@ ARGS_LIST_TIMEFRAMES = ["exchange", "print_one_column"]
 ARGS_LIST_PAIRS = ["exchange", "print_list", "list_pairs_print_json", "print_one_column",
                    "print_csv", "base_currencies", "quote_currencies", "list_pairs_all"]
 
+ARGS_TEST_PAIRLIST = ["config", "quote_currencies", "print_one_column", "list_pairs_print_json"]
+
 ARGS_CREATE_USERDIR = ["user_data_dir", "reset"]
 
 ARGS_BUILD_STRATEGY = ["user_data_dir", "strategy", "template"]
@@ -63,6 +65,7 @@ class Arguments:
     """
     Arguments Class. Manage the arguments received by the cli
     """
+
     def __init__(self, args: Optional[List[str]]) -> None:
         self.args = args
         self._parsed_arg: Optional[argparse.Namespace] = None
@@ -122,7 +125,7 @@ class Arguments:
         from freqtrade.utils import (start_create_userdir, start_download_data,
                                      start_list_exchanges, start_list_markets,
                                      start_new_hyperopt, start_new_strategy,
-                                     start_list_timeframes, start_trading)
+                                     start_list_timeframes, start_test_pairlist, start_trading)
         from freqtrade.plot.plot_utils import start_plot_dataframe, start_plot_profit
 
         subparsers = self.parser.add_subparsers(dest='command',
@@ -211,6 +214,14 @@ class Arguments:
         list_pairs_cmd.set_defaults(func=partial(start_list_markets, pairs_only=True))
         self._build_args(optionlist=ARGS_LIST_PAIRS, parser=list_pairs_cmd)
 
+        # Add test-pairlist subcommand
+        test_pairlist_cmd = subparsers.add_parser(
+            'test-pairlist',
+            help='Test your pairlist configuration.',
+        )
+        test_pairlist_cmd.set_defaults(func=start_test_pairlist)
+        self._build_args(optionlist=ARGS_TEST_PAIRLIST, parser=test_pairlist_cmd)
+
         # Add download-data subcommand
         download_data_cmd = subparsers.add_parser(
             'download-data',

freqtrade/pairlist/PrecisionFilter.py

@@ -48,6 +48,7 @@ class PrecisionFilter(IPairList):
         """
         Filters and sorts pairlists and assigns and returns them again.
         """
+        stoploss = None
         if self._config.get('stoploss') is not None:
             # Precalculate sanitized stoploss value to avoid recalculation for every pair
             stoploss = 1 - abs(self._config.get('stoploss'))

freqtrade/utils.py

@@ -322,3 +322,35 @@ def start_list_markets(args: Dict[str, Any], pairs_only: bool = False) -> None:
                   args.get('list_pairs_print_json', False) or
                   args.get('print_csv', False)):
             print(f"{summary_str}.")
+
+
+def start_test_pairlist(args: Dict[str, Any]) -> None:
+    """
+    Test Pairlist configuration
+    """
+    from freqtrade.pairlist.pairlistmanager import PairListManager
+    config = setup_utils_configuration(args, RunMode.UTIL_EXCHANGE)
+
+    exchange = ExchangeResolver(config['exchange']['name'], config, validate=False).exchange
+
+    quote_currencies = args.get('quote_currencies')
+    if not quote_currencies:
+        quote_currencies = [config.get('stake_currency')]
+    results = {}
+    for curr in quote_currencies:
+        config['stake_currency'] = curr
+        # Do not use ticker_interval set in the config
+        pairlists = PairListManager(exchange, config)
+        pairlists.refresh_pairlist()
+        results[curr] = pairlists.whitelist
+
+    for curr, pairlist in results.items():
+        if not args.get('print_one_column', False):
+            print(f"Pairs for {curr}: ")
+
+        if args.get('print_one_column', False):
+            print('\n'.join(pairlist))
+        elif args.get('list_pairs_print_json', False):
+            print(rapidjson.dumps(list(pairlist), default=str))
+        else:
+            print(pairlist)