Fix Flake8 errors after flake update

tests/edge/test_edge.py

@@ -136,7 +136,7 @@ def test_adjust(mocker, edge_conf):
     ))
 
     pairs = ['A/B', 'C/D', 'E/F', 'G/H']
-    assert(edge.adjust(pairs) == ['E/F', 'C/D'])
+    assert (edge.adjust(pairs) == ['E/F', 'C/D'])
 
 
 def test_stoploss(mocker, edge_conf):

tests/exchange/test_exchange.py

@@ -3810,8 +3810,8 @@ def test__get_funding_fees_from_exchange(default_conf, mocker, exchange_name):
         since=unix_time
     )
 
-    assert(isclose(expected_fees, fees_from_datetime))
-    assert(isclose(expected_fees, fees_from_unix_time))
+    assert (isclose(expected_fees, fees_from_datetime))
+    assert (isclose(expected_fees, fees_from_unix_time))
 
     ccxt_exceptionhandlers(
         mocker,