From 4c5432be6f51911327a8697a357d3b7c04996207 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Fri, 5 Apr 2019 16:48:14 +0300
Subject: [PATCH] Added command line options in backtesting to override
 max_open_trades and stake_amount

---
 freqtrade/arguments.py     | 16 ++++++++++++++++
 freqtrade/configuration.py | 10 +++++++++-
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/freqtrade/arguments.py b/freqtrade/arguments.py
index 8d7dac4bc..b0acb4122 100644
--- a/freqtrade/arguments.py
+++ b/freqtrade/arguments.py
@@ -247,6 +247,22 @@ class Arguments(object):
             dest='timerange',
         )
 
+        parser.add_argument(
+            '--max_open_trades',
+            help='Specify max_open_trades to use.',
+            default=None,
+            type=int,
+            dest='max_open_trades',
+        )
+
+        parser.add_argument(
+            '--stake_amount',
+            help='Specify stake_amount.',
+            default=None,
+            type=float,
+            dest='stake_amount',
+        )
+
     @staticmethod
     def hyperopt_options(parser: argparse.ArgumentParser) -> None:
         """
diff --git a/freqtrade/configuration.py b/freqtrade/configuration.py
index fdd71f2f5..e7441c18d 100644
--- a/freqtrade/configuration.py
+++ b/freqtrade/configuration.py
@@ -217,14 +217,22 @@ class Configuration(object):
             config.update({'position_stacking': True})
             logger.info('Parameter --enable-position-stacking detected ...')
 
-        # If --disable-max-market-positions is used we add it to the configuration
+        # If --disable-max-market-positions or --max_open_trades is used we update configuration
         if 'use_max_market_positions' in self.args and not self.args.use_max_market_positions:
             config.update({'use_max_market_positions': False})
             logger.info('Parameter --disable-max-market-positions detected ...')
             logger.info('max_open_trades set to unlimited ...')
+        elif 'max_open_trades' in self.args and self.args.max_open_trades:
+            config.update({'max_open_trades': self.args.max_open_trades})
+            logger.info('Parameter --max_open_trades detected, overriding max_open_trades to: %s ...', config.get('max_open_trades'))
         else:
             logger.info('Using max_open_trades: %s ...', config.get('max_open_trades'))
 
+        # If --stake_amount is used we update configuration
+        if 'stake_amount' in self.args and self.args.stake_amount:
+            config.update({'stake_amount': self.args.stake_amount})
+            logger.info('Parameter --stake_amount detected, overriding stake_amount to: %s ...', config.get('stake_amount'))
+
         # If --timerange is used we add it to the configuration
         if 'timerange' in self.args and self.args.timerange:
             config.update({'timerange': self.args.timerange})