MAINT: PEP8 compliance

catalyst/exchange/exchange_algorithm.py

@@ -29,19 +29,22 @@ from catalyst.exchange.exchange_blotter import ExchangeBlotter
 from catalyst.exchange.exchange_errors import (
     ExchangeRequestError,
     ExchangePortfolioDataError,
-    OrderTypeNotSupported)
+    OrderTypeNotSupported, )
 from catalyst.exchange.exchange_execution import ExchangeLimitOrder
-from catalyst.exchange.exchange_utils import save_algo_object, get_algo_object, \
-    get_algo_folder, get_algo_df, \
-    save_algo_df, group_assets_by_exchange
+from catalyst.exchange.exchange_utils import (
+    save_algo_object,
+    get_algo_object,
+    get_algo_folder,
+    get_algo_df,
+    save_algo_df,
+    group_assets_by_exchange, )
 from catalyst.exchange.live_graph_clock import LiveGraphClock
 from catalyst.exchange.simple_clock import SimpleClock
 from catalyst.exchange.stats_utils import get_pretty_stats, stats_to_s3
 from catalyst.finance.execution import MarketOrder
 from catalyst.finance.performance.period import calc_period_stats
 from catalyst.gens.tradesimulation import AlgorithmSimulator
-from catalyst.utils.api_support import (
-    api_method)
+from catalyst.utils.api_support import api_method
 from catalyst.utils.input_validation import error_keywords, ensure_upper_case
 from catalyst.utils.math_utils import round_nearest
 from catalyst.utils.preprocess import preprocess
@@ -394,7 +397,7 @@ class ExchangeTradingAlgorithmLive(ExchangeTradingAlgorithmBase):
 
         # This method is taken from TradingAlgorithm.
         # The clock has been replaced to use RealtimeClock
-        # TODO: should we apply a time skew? not sure to understand the utility.
+        # TODO: should we apply time skew? not sure to understand the utility.
 
         log.debug('creating clock')
         if self.live_graph:
@@ -616,7 +619,8 @@ class ExchangeTradingAlgorithmLive(ExchangeTradingAlgorithmBase):
 
             # print_df = pd.DataFrame(list(self.frame_stats))
             log.info(
-                'statistics for the last {stats_minutes} minutes:\n{stats}'.format(
+                'statistics for the last {stats_minutes} minutes:\n'
+                '{stats}'.format(
                     stats_minutes=self.stats_minutes,
                     stats=get_pretty_stats(
                         stats=self.frame_stats,