Remove hyperopt-loss default option

Force users to make a concious choice on a hyperopt-loss function

freqtrade/commands/cli_options.py

@@ -258,10 +258,8 @@ AVAILABLE_CLI_OPTIONS = {
         'Different functions can generate completely different results, '
         'since the target for optimization is different. Built-in Hyperopt-loss-functions are: '
         'DefaultHyperOptLoss, OnlyProfitHyperOptLoss, SharpeHyperOptLoss, SharpeHyperOptLossDaily, '
-        'SortinoHyperOptLoss, SortinoHyperOptLossDaily.'
-        '(default: `%(default)s`).',
+        'SortinoHyperOptLoss, SortinoHyperOptLossDaily.',
         metavar='NAME',
-        default=constants.DEFAULT_HYPEROPT_LOSS,
     ),
     "hyperoptexportfilename": Arg(
         '--hyperopt-filename',

freqtrade/constants.py

@@ -11,7 +11,6 @@ DEFAULT_EXCHANGE = 'bittrex'
 PROCESS_THROTTLE_SECS = 5  # sec
 HYPEROPT_EPOCH = 100  # epochs
 RETRY_TIMEOUT = 30  # sec
-DEFAULT_HYPEROPT_LOSS = 'DefaultHyperOptLoss'
 DEFAULT_DB_PROD_URL = 'sqlite:///tradesv3.sqlite'
 DEFAULT_DB_DRYRUN_URL = 'sqlite:///tradesv3.dryrun.sqlite'
 UNLIMITED_STAKE_AMOUNT = 'unlimited'

freqtrade/resolvers/hyperopt_resolver.py

@@ -7,7 +7,7 @@ import logging
 from pathlib import Path
 from typing import Dict
 
-from freqtrade.constants import DEFAULT_HYPEROPT_LOSS, USERPATH_HYPEROPTS
+from freqtrade.constants import USERPATH_HYPEROPTS
 from freqtrade.exceptions import OperationalException
 from freqtrade.optimize.hyperopt_interface import IHyperOpt
 from freqtrade.optimize.hyperopt_loss_interface import IHyperOptLoss
@@ -70,10 +70,10 @@ class HyperOptLossResolver(IResolver):
         :param config: configuration dictionary
         """
 
-        # Verify the hyperopt_loss is in the configuration, otherwise fallback to the
-        # default hyperopt loss
-        hyperoptloss_name = config.get('hyperopt_loss') or DEFAULT_HYPEROPT_LOSS
-
+        hyperoptloss_name = config.get('hyperopt_loss')
+        if not hyperoptloss_name:
+            raise OperationalException("No Hyperopt loss set. Please use `--hyperopt-loss` to "
+                                       "specify the Hyperopt-Loss class to use.")
         hyperoptloss = HyperOptLossResolver.load_object(hyperoptloss_name,
                                                         config, kwargs={},
                                                         extra_dir=config.get('hyperopt_path'))