diff --git a/freqtrade/commands/data_commands.py b/freqtrade/commands/data_commands.py
index aa0b826b5..da1eb0cf5 100644
--- a/freqtrade/commands/data_commands.py
+++ b/freqtrade/commands/data_commands.py
@@ -35,8 +35,8 @@ def start_download_data(args: Dict[str, Any]) -> None:
             "Downloading data requires a list of pairs. "
             "Please check the documentation on how to configure this.")
 
-    logger.info(f'About to download pairs: {config["pairs"]}, '
-                f'intervals: {config["timeframes"]} to {config["datadir"]}')
+    logger.info(f"About to download pairs: {config['pairs']}, "
+                f"intervals: {config['timeframes']} to {config['datadir']}")
 
     pairs_not_available: List[str] = []
 
@@ -51,21 +51,21 @@ def start_download_data(args: Dict[str, Any]) -> None:
 
         if config.get('download_trades'):
             pairs_not_available = refresh_backtest_trades_data(
-                exchange, pairs=config["pairs"], datadir=config['datadir'],
-                timerange=timerange, erase=bool(config.get("erase")),
+                exchange, pairs=config['pairs'], datadir=config['datadir'],
+                timerange=timerange, erase=bool(config.get('erase')),
                 data_format=config['dataformat_trades'])
 
             # Convert downloaded trade data to different timeframes
             convert_trades_to_ohlcv(
-                pairs=config["pairs"], timeframes=config["timeframes"],
-                datadir=config['datadir'], timerange=timerange, erase=bool(config.get("erase")),
+                pairs=config['pairs'], timeframes=config['timeframes'],
+                datadir=config['datadir'], timerange=timerange, erase=bool(config.get('erase')),
                 data_format_ohlcv=config['dataformat_ohlcv'],
                 data_format_trades=config['dataformat_trades'],
                 )
         else:
             pairs_not_available = refresh_backtest_ohlcv_data(
-                exchange, pairs=config["pairs"], timeframes=config["timeframes"],
-                datadir=config['datadir'], timerange=timerange, erase=bool(config.get("erase")),
+                exchange, pairs=config['pairs'], timeframes=config['timeframes'],
+                datadir=config['datadir'], timerange=timerange, erase=bool(config.get('erase')),
                 data_format=config['dataformat_ohlcv'])
 
     except KeyboardInterrupt:
diff --git a/freqtrade/commands/deploy_commands.py b/freqtrade/commands/deploy_commands.py
index 86562fa7c..bfd68cb9b 100644
--- a/freqtrade/commands/deploy_commands.py
+++ b/freqtrade/commands/deploy_commands.py
@@ -75,7 +75,7 @@ def start_new_strategy(args: Dict[str, Any]) -> None:
         if args["strategy"] == "DefaultStrategy":
             raise OperationalException("DefaultStrategy is not allowed as name.")
 
-        new_path = config['user_data_dir'] / USERPATH_STRATEGIES / (args["strategy"] + ".py")
+        new_path = config['user_data_dir'] / USERPATH_STRATEGIES / (args['strategy'] + '.py')
 
         if new_path.exists():
             raise OperationalException(f"`{new_path}` already exists. "
@@ -125,11 +125,11 @@ def start_new_hyperopt(args: Dict[str, Any]) -> None:
 
     config = setup_utils_configuration(args, RunMode.UTIL_NO_EXCHANGE)
 
-    if "hyperopt" in args and args["hyperopt"]:
-        if args["hyperopt"] == "DefaultHyperopt":
+    if 'hyperopt' in args and args['hyperopt']:
+        if args['hyperopt'] == 'DefaultHyperopt':
             raise OperationalException("DefaultHyperopt is not allowed as name.")
 
-        new_path = config['user_data_dir'] / USERPATH_HYPEROPTS / (args["hyperopt"] + ".py")
+        new_path = config['user_data_dir'] / USERPATH_HYPEROPTS / (args['hyperopt'] + '.py')
 
         if new_path.exists():
             raise OperationalException(f"`{new_path}` already exists. "
diff --git a/freqtrade/configuration/configuration.py b/freqtrade/configuration/configuration.py
index 01e42144a..930917fae 100644
--- a/freqtrade/configuration/configuration.py
+++ b/freqtrade/configuration/configuration.py
@@ -54,7 +54,7 @@ class Configuration:
         :param files: List of file paths
         :return: configuration dictionary
         """
-        c = Configuration({"config": files}, RunMode.OTHER)
+        c = Configuration({'config': files}, RunMode.OTHER)
         return c.get_config()
 
     def load_from_files(self, files: List[str]) -> Dict[str, Any]:
@@ -123,10 +123,10 @@ class Configuration:
         the -v/--verbose, --logfile options
         """
         # Log level
-        config.update({'verbosity': self.args.get("verbosity", 0)})
+        config.update({'verbosity': self.args.get('verbosity', 0)})
 
-        if 'logfile' in self.args and self.args["logfile"]:
-            config.update({'logfile': self.args["logfile"]})
+        if 'logfile' in self.args and self.args['logfile']:
+            config.update({'logfile': self.args['logfile']})
 
         setup_logging(config)
 
@@ -149,22 +149,22 @@ class Configuration:
     def _process_common_options(self, config: Dict[str, Any]) -> None:
 
         # Set strategy if not specified in config and or if it's non default
-        if self.args.get("strategy") or not config.get('strategy'):
-            config.update({'strategy': self.args.get("strategy")})
+        if self.args.get('strategy') or not config.get('strategy'):
+            config.update({'strategy': self.args.get('strategy')})
 
         self._args_to_config(config, argname='strategy_path',
                              logstring='Using additional Strategy lookup path: {}')
 
-        if ('db_url' in self.args and self.args["db_url"] and
-                self.args["db_url"] != constants.DEFAULT_DB_PROD_URL):
-            config.update({'db_url': self.args["db_url"]})
+        if ('db_url' in self.args and self.args['db_url'] and
+                self.args['db_url'] != constants.DEFAULT_DB_PROD_URL):
+            config.update({'db_url': self.args['db_url']})
             logger.info('Parameter --db-url detected ...')
 
         if config.get('forcebuy_enable', False):
             logger.warning('`forcebuy` RPC message enabled.')
 
         # Support for sd_notify
-        if 'sd_notify' in self.args and self.args["sd_notify"]:
+        if 'sd_notify' in self.args and self.args['sd_notify']:
             config['internals'].update({'sd_notify': True})
 
     def _process_datadir_options(self, config: Dict[str, Any]) -> None:
@@ -173,24 +173,24 @@ class Configuration:
         --user-data, --datadir
         """
         # Check exchange parameter here - otherwise `datadir` might be wrong.
-        if "exchange" in self.args and self.args["exchange"]:
-            config['exchange']['name'] = self.args["exchange"]
+        if 'exchange' in self.args and self.args['exchange']:
+            config['exchange']['name'] = self.args['exchange']
             logger.info(f"Using exchange {config['exchange']['name']}")
 
         if 'pair_whitelist' not in config['exchange']:
             config['exchange']['pair_whitelist'] = []
 
-        if 'user_data_dir' in self.args and self.args["user_data_dir"]:
-            config.update({'user_data_dir': self.args["user_data_dir"]})
+        if 'user_data_dir' in self.args and self.args['user_data_dir']:
+            config.update({'user_data_dir': self.args['user_data_dir']})
         elif 'user_data_dir' not in config:
             # Default to cwd/user_data (legacy option ...)
-            config.update({'user_data_dir': str(Path.cwd() / "user_data")})
+            config.update({'user_data_dir': str(Path.cwd() / 'user_data')})
 
         # reset to user_data_dir so this contains the absolute path.
         config['user_data_dir'] = create_userdata_dir(config['user_data_dir'], create_dir=False)
         logger.info('Using user-data directory: %s ...', config['user_data_dir'])
 
-        config.update({'datadir': create_datadir(config, self.args.get("datadir", None))})
+        config.update({'datadir': create_datadir(config, self.args.get('datadir', None))})
         logger.info('Using data directory: %s ...', config.get('datadir'))
 
         if self.args.get('exportfilename'):
@@ -219,8 +219,8 @@ class Configuration:
             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"]})
+        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'))
         elif config['runmode'] in NON_UTIL_MODES:
@@ -447,12 +447,12 @@ class Configuration:
                 config['pairs'].sort()
             return
 
-        if "config" in self.args and self.args["config"]:
+        if 'config' in self.args and self.args['config']:
             logger.info("Using pairlist from configuration.")
             config['pairs'] = config.get('exchange', {}).get('pair_whitelist')
         else:
             # Fall back to /dl_path/pairs.json
-            pairs_file = config['datadir'] / "pairs.json"
+            pairs_file = config['datadir'] / 'pairs.json'
             if pairs_file.exists():
                 with pairs_file.open('r') as f:
                     config['pairs'] = json_load(f)
diff --git a/freqtrade/data/btanalysis.py b/freqtrade/data/btanalysis.py
index 972961b36..2d45a7222 100644
--- a/freqtrade/data/btanalysis.py
+++ b/freqtrade/data/btanalysis.py
@@ -208,7 +208,7 @@ def load_trades_from_db(db_url: str, strategy: Optional[str] = None) -> pd.DataF
 def load_trades(source: str, db_url: str, exportfilename: Path,
                 no_trades: bool = False, strategy: Optional[str] = None) -> pd.DataFrame:
     """
-    Based on configuration option "trade_source":
+    Based on configuration option 'trade_source':
     * loads data from DB (using `db_url`)
     * loads data from backtestfile (using `exportfilename`)
     :param source: "DB" or "file" - specify source to load from
diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index c9c5a0027..d84fe7b82 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -85,8 +85,8 @@ class Exchange:
 
         # Deep merge ft_has with default ft_has options
         self._ft_has = deep_merge_dicts(self._ft_has, deepcopy(self._ft_has_default))
-        if exchange_config.get("_ft_has_params"):
-            self._ft_has = deep_merge_dicts(exchange_config.get("_ft_has_params"),
+        if exchange_config.get('_ft_has_params'):
+            self._ft_has = deep_merge_dicts(exchange_config.get('_ft_has_params'),
                                             self._ft_has)
             logger.info("Overriding exchange._ft_has with config params, result: %s", self._ft_has)
 
diff --git a/freqtrade/plot/plotting.py b/freqtrade/plot/plotting.py
index b420db770..270fe615b 100644
--- a/freqtrade/plot/plotting.py
+++ b/freqtrade/plot/plotting.py
@@ -38,15 +38,15 @@ def init_plotscript(config):
     """
 
     if "pairs" in config:
-        pairs = config["pairs"]
+        pairs = config['pairs']
     else:
-        pairs = config["exchange"]["pair_whitelist"]
+        pairs = config['exchange']['pair_whitelist']
 
     # Set timerange to use
-    timerange = TimeRange.parse_timerange(config.get("timerange"))
+    timerange = TimeRange.parse_timerange(config.get('timerange'))
 
     data = load_data(
-        datadir=config.get("datadir"),
+        datadir=config.get('datadir'),
         pairs=pairs,
         timeframe=config.get('timeframe', '5m'),
         timerange=timerange,
@@ -67,7 +67,7 @@ def init_plotscript(config):
         db_url=config.get('db_url'),
         exportfilename=filename,
         no_trades=no_trades,
-        strategy=config.get("strategy"),
+        strategy=config.get('strategy'),
     )
     trades = trim_dataframe(trades, timerange, 'open_date')
 
@@ -491,13 +491,13 @@ def load_and_plot_trades(config: Dict[str, Any]):
             pair=pair,
             data=df_analyzed,
             trades=trades_pair,
-            indicators1=config.get("indicators1", []),
-            indicators2=config.get("indicators2", []),
+            indicators1=config.get('indicators1', []),
+            indicators2=config.get('indicators2', []),
             plot_config=strategy.plot_config if hasattr(strategy, 'plot_config') else {}
         )
 
         store_plot_file(fig, filename=generate_plot_filename(pair, config['timeframe']),
-                        directory=config['user_data_dir'] / "plot")
+                        directory=config['user_data_dir'] / 'plot')
 
     logger.info('End of plotting process. %s plots generated', pair_counter)
 
@@ -514,7 +514,7 @@ def plot_profit(config: Dict[str, Any]) -> None:
     # Filter trades to relevant pairs
     # Remove open pairs - we don't know the profit yet so can't calculate profit for these.
     # Also, If only one open pair is left, then the profit-generation would fail.
-    trades = trades[(trades['pair'].isin(plot_elements["pairs"]))
+    trades = trades[(trades['pair'].isin(plot_elements['pairs']))
                     & (~trades['close_date'].isnull())
                     ]
     if len(trades) == 0:
@@ -523,7 +523,7 @@ def plot_profit(config: Dict[str, Any]) -> None:
 
     # Create an average close price of all the pairs that were involved.
     # this could be useful to gauge the overall market trend
-    fig = generate_profit_graph(plot_elements["pairs"], plot_elements["ohlcv"],
+    fig = generate_profit_graph(plot_elements['pairs'], plot_elements['ohlcv'],
                                 trades, config.get('timeframe', '5m'))
     store_plot_file(fig, filename='freqtrade-profit-plot.html',
-                    directory=config['user_data_dir'] / "plot", auto_open=True)
+                    directory=config['user_data_dir'] / 'plot', auto_open=True)
diff --git a/scripts/rest_client.py b/scripts/rest_client.py
index 51ea596f6..598a82040 100755
--- a/scripts/rest_client.py
+++ b/scripts/rest_client.py
@@ -276,11 +276,11 @@ def main(args):
         print_commands()
         sys.exit()
 
-    config = load_config(args["config"])
-    url = config.get("api_server", {}).get("server_url", "127.0.0.1")
-    port = config.get("api_server", {}).get("listen_port", "8080")
-    username = config.get("api_server", {}).get("username")
-    password = config.get("api_server", {}).get("password")
+    config = load_config(args['config'])
+    url = config.get('api_server', {}).get('server_url', '127.0.0.1')
+    port = config.get('api_server', {}).get('listen_port', '8080')
+    username = config.get('api_server', {}).get('username')
+    password = config.get('api_server', {}).get('password')
 
     server_url = f"http://{url}:{port}"
     client = FtRestClient(server_url, username, password)
diff --git a/tests/conftest.py b/tests/conftest.py
index a40bfbc6c..dbed08ec5 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -78,7 +78,7 @@ def patch_exchange(mocker, api_mock=None, id='bittrex', mock_markets=True) -> No
 def get_patched_exchange(mocker, config, api_mock=None, id='bittrex',
                          mock_markets=True) -> Exchange:
     patch_exchange(mocker, api_mock, id, mock_markets)
-    config["exchange"]["name"] = id
+    config['exchange']['name'] = id
     try:
         exchange = ExchangeResolver.load_exchange(id, config)
     except ImportError:
diff --git a/tests/rpc/test_rpc_apiserver.py b/tests/rpc/test_rpc_apiserver.py
index a3a2c9a1f..2513f751b 100644
--- a/tests/rpc/test_rpc_apiserver.py
+++ b/tests/rpc/test_rpc_apiserver.py
@@ -87,20 +87,20 @@ def test_api_unauthorized(botclient):
     assert rc.json == {'error': 'Unauthorized'}
 
     # Change only username
-    ftbot.config['api_server']['username'] = "Ftrader"
+    ftbot.config['api_server']['username'] = 'Ftrader'
     rc = client_get(client, f"{BASE_URI}/version")
     assert_response(rc, 401)
     assert rc.json == {'error': 'Unauthorized'}
 
     # Change only password
     ftbot.config['api_server']['username'] = _TEST_USER
-    ftbot.config['api_server']['password'] = "WrongPassword"
+    ftbot.config['api_server']['password'] = 'WrongPassword'
     rc = client_get(client, f"{BASE_URI}/version")
     assert_response(rc, 401)
     assert rc.json == {'error': 'Unauthorized'}
 
-    ftbot.config['api_server']['username'] = "Ftrader"
-    ftbot.config['api_server']['password'] = "WrongPassword"
+    ftbot.config['api_server']['username'] = 'Ftrader'
+    ftbot.config['api_server']['password'] = 'WrongPassword'
 
     rc = client_get(client, f"{BASE_URI}/version")
     assert_response(rc, 401)
@@ -677,7 +677,7 @@ def test_api_forcebuy(botclient, mocker, fee):
     assert rc.json == {"error": "Error querying _forcebuy: Forcebuy not enabled."}
 
     # enable forcebuy
-    ftbot.config["forcebuy_enable"] = True
+    ftbot.config['forcebuy_enable'] = True
 
     fbuy_mock = MagicMock(return_value=None)
     mocker.patch("freqtrade.rpc.RPC._rpc_forcebuy", fbuy_mock)
diff --git a/tests/test_arguments.py b/tests/test_arguments.py
index 457683598..2af36277b 100644
--- a/tests/test_arguments.py
+++ b/tests/test_arguments.py
@@ -19,64 +19,64 @@ def test_parse_args_none() -> None:
 
 
 def test_parse_args_defaults(mocker) -> None:
-    mocker.patch.object(Path, "is_file", MagicMock(side_effect=[False, True]))
+    mocker.patch.object(Path, 'is_file', MagicMock(side_effect=[False, True]))
     args = Arguments(['trade']).get_parsed_arg()
-    assert args["config"] == ['config.json']
-    assert args["strategy_path"] is None
-    assert args["datadir"] is None
-    assert args["verbosity"] == 0
+    assert args['config'] == ['config.json']
+    assert args['strategy_path'] is None
+    assert args['datadir'] is None
+    assert args['verbosity'] == 0
 
 
 def test_parse_args_default_userdatadir(mocker) -> None:
-    mocker.patch.object(Path, "is_file", MagicMock(return_value=True))
+    mocker.patch.object(Path, 'is_file', MagicMock(return_value=True))
     args = Arguments(['trade']).get_parsed_arg()
     # configuration defaults to user_data if that is available.
-    assert args["config"] == [str(Path('user_data/config.json'))]
-    assert args["strategy_path"] is None
-    assert args["datadir"] is None
-    assert args["verbosity"] == 0
+    assert args['config'] == [str(Path('user_data/config.json'))]
+    assert args['strategy_path'] is None
+    assert args['datadir'] is None
+    assert args['verbosity'] == 0
 
 
 def test_parse_args_userdatadir(mocker) -> None:
-    mocker.patch.object(Path, "is_file", MagicMock(return_value=True))
+    mocker.patch.object(Path, 'is_file', MagicMock(return_value=True))
     args = Arguments(['trade', '--user-data-dir', 'user_data']).get_parsed_arg()
     # configuration defaults to user_data if that is available.
-    assert args["config"] == [str(Path('user_data/config.json'))]
-    assert args["strategy_path"] is None
-    assert args["datadir"] is None
-    assert args["verbosity"] == 0
+    assert args['config'] == [str(Path('user_data/config.json'))]
+    assert args['strategy_path'] is None
+    assert args['datadir'] is None
+    assert args['verbosity'] == 0
 
 
 def test_parse_args_config() -> None:
     args = Arguments(['trade', '-c', '/dev/null']).get_parsed_arg()
-    assert args["config"] == ['/dev/null']
+    assert args['config'] == ['/dev/null']
 
     args = Arguments(['trade', '--config', '/dev/null']).get_parsed_arg()
-    assert args["config"] == ['/dev/null']
+    assert args['config'] == ['/dev/null']
 
     args = Arguments(['trade', '--config', '/dev/null',
                       '--config', '/dev/zero'],).get_parsed_arg()
-    assert args["config"] == ['/dev/null', '/dev/zero']
+    assert args['config'] == ['/dev/null', '/dev/zero']
 
 
 def test_parse_args_db_url() -> None:
     args = Arguments(['trade', '--db-url', 'sqlite:///test.sqlite']).get_parsed_arg()
-    assert args["db_url"] == 'sqlite:///test.sqlite'
+    assert args['db_url'] == 'sqlite:///test.sqlite'
 
 
 def test_parse_args_verbose() -> None:
     args = Arguments(['trade', '-v']).get_parsed_arg()
-    assert args["verbosity"] == 1
+    assert args['verbosity'] == 1
 
     args = Arguments(['trade', '--verbose']).get_parsed_arg()
-    assert args["verbosity"] == 1
+    assert args['verbosity'] == 1
 
 
 def test_common_scripts_options() -> None:
     args = Arguments(['download-data', '-p', 'ETH/BTC', 'XRP/BTC']).get_parsed_arg()
 
-    assert args["pairs"] == ['ETH/BTC', 'XRP/BTC']
-    assert "func" in args
+    assert args['pairs'] == ['ETH/BTC', 'XRP/BTC']
+    assert 'func' in args
 
 
 def test_parse_args_version() -> None:
@@ -91,7 +91,7 @@ def test_parse_args_invalid() -> None:
 
 def test_parse_args_strategy() -> None:
     args = Arguments(['trade', '--strategy', 'SomeStrategy']).get_parsed_arg()
-    assert args["strategy"] == 'SomeStrategy'
+    assert args['strategy'] == 'SomeStrategy'
 
 
 def test_parse_args_strategy_invalid() -> None:
@@ -101,7 +101,7 @@ def test_parse_args_strategy_invalid() -> None:
 
 def test_parse_args_strategy_path() -> None:
     args = Arguments(['trade', '--strategy-path', '/some/path']).get_parsed_arg()
-    assert args["strategy_path"] == '/some/path'
+    assert args['strategy_path'] == '/some/path'
 
 
 def test_parse_args_strategy_path_invalid() -> None:
@@ -127,13 +127,13 @@ def test_parse_args_backtesting_custom() -> None:
         'SampleStrategy'
         ]
     call_args = Arguments(args).get_parsed_arg()
-    assert call_args["config"] == ['test_conf.json']
-    assert call_args["verbosity"] == 0
-    assert call_args["command"] == 'backtesting'
-    assert call_args["func"] is not None
-    assert call_args["timeframe"] == '1m'
-    assert type(call_args["strategy_list"]) is list
-    assert len(call_args["strategy_list"]) == 2
+    assert call_args['config'] == ['test_conf.json']
+    assert call_args['verbosity'] == 0
+    assert call_args['command'] == 'backtesting'
+    assert call_args['func'] is not None
+    assert call_args['timeframe'] == '1m'
+    assert type(call_args['strategy_list']) is list
+    assert len(call_args['strategy_list']) == 2
 
 
 def test_parse_args_hyperopt_custom() -> None:
@@ -144,13 +144,13 @@ def test_parse_args_hyperopt_custom() -> None:
         '--spaces', 'buy'
     ]
     call_args = Arguments(args).get_parsed_arg()
-    assert call_args["config"] == ['test_conf.json']
-    assert call_args["epochs"] == 20
-    assert call_args["verbosity"] == 0
-    assert call_args["command"] == 'hyperopt'
-    assert call_args["spaces"] == ['buy']
-    assert call_args["func"] is not None
-    assert callable(call_args["func"])
+    assert call_args['config'] == ['test_conf.json']
+    assert call_args['epochs'] == 20
+    assert call_args['verbosity'] == 0
+    assert call_args['command'] == 'hyperopt'
+    assert call_args['spaces'] == ['buy']
+    assert call_args['func'] is not None
+    assert callable(call_args['func'])
 
 
 def test_download_data_options() -> None:
@@ -163,10 +163,10 @@ def test_download_data_options() -> None:
     ]
     pargs = Arguments(args).get_parsed_arg()
 
-    assert pargs["pairs_file"] == 'file_with_pairs'
-    assert pargs["datadir"] == 'datadir/directory'
-    assert pargs["days"] == 30
-    assert pargs["exchange"] == 'binance'
+    assert pargs['pairs_file'] == 'file_with_pairs'
+    assert pargs['datadir'] == 'datadir/directory'
+    assert pargs['days'] == 30
+    assert pargs['exchange'] == 'binance'
 
 
 def test_plot_dataframe_options() -> None:
@@ -180,10 +180,10 @@ def test_plot_dataframe_options() -> None:
     ]
     pargs = Arguments(args).get_parsed_arg()
 
-    assert pargs["indicators1"] == ["sma10", "sma100"]
-    assert pargs["indicators2"] == ["macd", "fastd", "fastk"]
-    assert pargs["plot_limit"] == 30
-    assert pargs["pairs"] == ["UNITTEST/BTC"]
+    assert pargs['indicators1'] == ['sma10', 'sma100']
+    assert pargs['indicators2'] == ['macd', 'fastd', 'fastk']
+    assert pargs['plot_limit'] == 30
+    assert pargs['pairs'] == ['UNITTEST/BTC']
 
 
 def test_plot_profit_options() -> None:
@@ -191,66 +191,66 @@ def test_plot_profit_options() -> None:
         'plot-profit',
         '-p', 'UNITTEST/BTC',
         '--trade-source', 'DB',
-        "--db-url", "sqlite:///whatever.sqlite",
+        '--db-url', 'sqlite:///whatever.sqlite',
     ]
     pargs = Arguments(args).get_parsed_arg()
 
-    assert pargs["trade_source"] == "DB"
-    assert pargs["pairs"] == ["UNITTEST/BTC"]
-    assert pargs["db_url"] == "sqlite:///whatever.sqlite"
+    assert pargs['trade_source'] == 'DB'
+    assert pargs['pairs'] == ['UNITTEST/BTC']
+    assert pargs['db_url'] == 'sqlite:///whatever.sqlite'
 
 
 def test_config_notallowed(mocker) -> None:
-    mocker.patch.object(Path, "is_file", MagicMock(return_value=False))
+    mocker.patch.object(Path, 'is_file', MagicMock(return_value=False))
     args = [
         'create-userdir',
     ]
     pargs = Arguments(args).get_parsed_arg()
 
-    assert "config" not in pargs
+    assert 'config' not in pargs
 
     # When file exists:
-    mocker.patch.object(Path, "is_file", MagicMock(return_value=True))
+    mocker.patch.object(Path, 'is_file', MagicMock(return_value=True))
     args = [
         'create-userdir',
     ]
     pargs = Arguments(args).get_parsed_arg()
     # config is not added even if it exists, since create-userdir is in the notallowed list
-    assert "config" not in pargs
+    assert 'config' not in pargs
 
 
 def test_config_notrequired(mocker) -> None:
-    mocker.patch.object(Path, "is_file", MagicMock(return_value=False))
+    mocker.patch.object(Path, 'is_file', MagicMock(return_value=False))
     args = [
         'download-data',
     ]
     pargs = Arguments(args).get_parsed_arg()
 
-    assert pargs["config"] is None
+    assert pargs['config'] is None
 
     # When file exists:
-    mocker.patch.object(Path, "is_file", MagicMock(side_effect=[False, True]))
+    mocker.patch.object(Path, 'is_file', MagicMock(side_effect=[False, True]))
     args = [
         'download-data',
     ]
     pargs = Arguments(args).get_parsed_arg()
     # config is added if it exists
-    assert pargs["config"] == ['config.json']
+    assert pargs['config'] == ['config.json']
 
 
 def test_check_int_positive() -> None:
-    assert check_int_positive("3") == 3
-    assert check_int_positive("1") == 1
-    assert check_int_positive("100") == 100
+    assert check_int_positive('3') == 3
+    assert check_int_positive('1') == 1
+    assert check_int_positive('100') == 100
 
     with pytest.raises(argparse.ArgumentTypeError):
-        check_int_positive("-2")
+        check_int_positive('-2')
 
     with pytest.raises(argparse.ArgumentTypeError):
-        check_int_positive("0")
+        check_int_positive('0')
 
     with pytest.raises(argparse.ArgumentTypeError):
-        check_int_positive("3.5")
+        check_int_positive('3.5')
 
     with pytest.raises(argparse.ArgumentTypeError):
-        check_int_positive("DeadBeef")
+        check_int_positive('DeadBeef')
diff --git a/tests/test_configuration.py b/tests/test_configuration.py
index ca5d6eadc..8549f00c9 100644
--- a/tests/test_configuration.py
+++ b/tests/test_configuration.py
@@ -1005,7 +1005,7 @@ def test_pairlist_resolving_fallback(mocker):
 
     args = Arguments(arglist).get_parsed_arg()
     # Fix flaky tests if config.json exists
-    args["config"] = None
+    args['config'] = None
 
     configuration = Configuration(args, RunMode.OTHER)
     config = configuration.get_config()
diff --git a/tests/test_main.py b/tests/test_main.py
index d5309ae3f..dd0c877e8 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -44,19 +44,19 @@ def test_parse_args_backtesting(mocker) -> None:
 
 
 def test_main_start_hyperopt(mocker) -> None:
-    mocker.patch.object(Path, "is_file", MagicMock(side_effect=[False, True]))
+    mocker.patch.object(Path, 'is_file', MagicMock(side_effect=[False, True]))
     hyperopt_mock = mocker.patch('freqtrade.commands.start_hyperopt', MagicMock())
-    hyperopt_mock.__name__ = PropertyMock("start_hyperopt")
+    hyperopt_mock.__name__ = PropertyMock('start_hyperopt')
     # it's sys.exit(0) at the end of hyperopt
     with pytest.raises(SystemExit):
         main(['hyperopt'])
     assert hyperopt_mock.call_count == 1
     call_args = hyperopt_mock.call_args[0][0]
-    assert call_args["config"] == ['config.json']
-    assert call_args["verbosity"] == 0
-    assert call_args["command"] == 'hyperopt'
-    assert call_args["func"] is not None
-    assert callable(call_args["func"])
+    assert call_args['config'] == ['config.json']
+    assert call_args['verbosity'] == 0
+    assert call_args['command'] == 'hyperopt'
+    assert call_args['func'] is not None
+    assert callable(call_args['func'])
 
 
 def test_main_fatal_exception(mocker, default_conf, caplog) -> None:
diff --git a/tests/test_plotting.py b/tests/test_plotting.py
index 28c486877..bcababbf1 100644
--- a/tests/test_plotting.py
+++ b/tests/test_plotting.py
@@ -362,22 +362,22 @@ def test_start_plot_profit(mocker):
 def test_start_plot_profit_error(mocker):
 
     args = [
-        "plot-profit",
-        "--pairs", "ETH/BTC"
+        'plot-profit',
+        '--pairs', 'ETH/BTC'
     ]
     argsp = get_args(args)
     # Make sure we use no config. Details: #2241
     # not resetting config causes random failures if config.json exists
-    argsp["config"] = []
+    argsp['config'] = []
     with pytest.raises(OperationalException):
         start_plot_profit(argsp)
 
 
 def test_plot_profit(default_conf, mocker, testdatadir, caplog):
     default_conf['trade_source'] = 'file'
-    default_conf["datadir"] = testdatadir
-    default_conf['exportfilename'] = testdatadir / "backtest-result_test_nofile.json"
-    default_conf['pairs'] = ["ETH/BTC", "LTC/BTC"]
+    default_conf['datadir'] = testdatadir
+    default_conf['exportfilename'] = testdatadir / 'backtest-result_test_nofile.json'
+    default_conf['pairs'] = ['ETH/BTC', 'LTC/BTC']
 
     profit_mock = MagicMock()
     store_mock = MagicMock()