diff --git a/catalyst/exchange/ccxt/ccxt_exchange.py b/catalyst/exchange/ccxt/ccxt_exchange.py
index e3a8a5f4..77079ecb 100644
--- a/catalyst/exchange/ccxt/ccxt_exchange.py
+++ b/catalyst/exchange/ccxt/ccxt_exchange.py
@@ -4,8 +4,14 @@ from collections import defaultdict
 import ccxt
 import pandas as pd
 import six
-from catalyst.algorithm import MarketOrder
 from catalyst.assets._assets import TradingPair
+from ccxt import InvalidOrder, NetworkError, \
+    ExchangeError
+from logbook import Logger
+from redo import retry
+from six import string_types
+
+from catalyst.algorithm import MarketOrder
 from catalyst.constants import LOG_LEVEL
 from catalyst.exchange.exchange import Exchange
 from catalyst.exchange.exchange_bundle import ExchangeBundle
@@ -19,13 +25,9 @@ from catalyst.exchange.utils.ccxt_utils import get_exchange_config
 from catalyst.exchange.utils.datetime_utils import from_ms_timestamp, \
     get_epoch, \
     get_periods_range
+from catalyst.exchange.utils.exchange_utils import get_catalyst_symbol
 from catalyst.finance.order import Order, ORDER_STATUS
 from catalyst.finance.transaction import Transaction
-from ccxt import InvalidOrder, NetworkError, \
-    ExchangeError
-from logbook import Logger
-from redo import retry
-from six import string_types
 
 log = Logger('CCXT', level=LOG_LEVEL)
 
@@ -488,8 +490,8 @@ class CCXT(Exchange):
             params['taker'] = 0.002
 
         elif 'maker' in market and 'taker' in market \
-                and market['maker'] is not None \
-                and market['taker'] is not None:
+            and market['maker'] is not None \
+            and market['taker'] is not None:
             params['maker'] = market['maker']
             params['taker'] = market['taker']
 
diff --git a/catalyst/exchange/exchange.py b/catalyst/exchange/exchange.py
index 7593c491..28dfdbfe 100644
--- a/catalyst/exchange/exchange.py
+++ b/catalyst/exchange/exchange.py
@@ -5,6 +5,7 @@ from time import sleep
 
 import numpy as np
 import pandas as pd
+from logbook import Logger
 
 from catalyst.constants import LOG_LEVEL
 from catalyst.data.data_portal import BASE_FIELDS
@@ -19,7 +20,6 @@ from catalyst.exchange.utils.datetime_utils import get_delta, \
     get_periods, get_start_dt, get_frequency
 from catalyst.exchange.utils.exchange_utils import \
     resample_history_df, has_bundle
-from logbook import Logger
 
 log = Logger('Exchange', level=LOG_LEVEL)
 
diff --git a/catalyst/exchange/exchange_algorithm.py b/catalyst/exchange/exchange_algorithm.py
index 1f8d40f4..92c307d3 100644
--- a/catalyst/exchange/exchange_algorithm.py
+++ b/catalyst/exchange/exchange_algorithm.py
@@ -18,9 +18,11 @@ from datetime import timedelta
 from os import listdir
 from os.path import isfile, join, exists
 
-import catalyst.protocol as zp
 import logbook
 import pandas as pd
+from redo import retry
+
+import catalyst.protocol as zp
 from catalyst.algorithm import TradingAlgorithm
 from catalyst.constants import LOG_LEVEL
 from catalyst.exchange.exchange_blotter import ExchangeBlotter
@@ -50,7 +52,6 @@ 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
-from redo import retry
 
 log = logbook.Logger('exchange_algorithm', level=LOG_LEVEL)