Upgrades flake8 from 1.5 -> 1.6

Also, removes flake8 ignores, since the warnings that were
at odds with eachother now work.

tests/test_finance.py

@@ -31,9 +31,9 @@ from zipline.finance.performance import PerformanceTracker
 from zipline.utils.protocol_utils import ndict
 from zipline.finance.trading import TransactionSimulator
 from zipline.utils.test_utils import(
-        setup_logger,
-        teardown_logger,
-        assert_single_position
+    setup_logger,
+    teardown_logger,
+    assert_single_position
 )
 
 DEFAULT_TIMEOUT = 15  # seconds

tests/test_perf_tracking.py

@@ -126,8 +126,8 @@ check treasury and benchmark data in findb, and re-run the test."""
             trades[-1]['price'],
             "last sale should be same as last trade. \
             expected {exp} actual {act}".format(
-                exp=trades[-1]['price'],
-                act=pp.positions[1].last_sale_price)
+            exp=trades[-1]['price'],
+            act=pp.positions[1].last_sale_price)
         )
 
         self.assertEqual(
@@ -565,7 +565,7 @@ shares in position"
             'price',
             'changed']
         perf_tracker = perf.PerformanceTracker(
-                self.trading_environment
+            self.trading_environment
         )
 
         for event in trade_history:

tests/test_risk.py

@@ -763,12 +763,11 @@ class Risk(unittest.TestCase):
                 "mismatch for total months - \
                 expected:{total_months}/actual:{actual}, \
                 period:{period_length}, start:{start_date}, \
-                calculated end:{end}".format(
-                        total_months=total_months,
-                        period_length=period_length,
-                        start_date=start_date,
-                        end=col[-1].end_date,
-                        actual=len(col))
+                calculated end:{end}".format(total_months=total_months,
+                                             period_length=period_length,
+                                             start_date=start_date,
+                                             end=col[-1].end_date,
+                                             actual=len(col))
             )
             self.assert_month(start_date.month, col[-1].end_date.month)
             self.assert_last_day(col[-1].end_date)

tests/test_transforms.py

@@ -332,18 +332,18 @@ class TestBatchTransform(TestCase):
         for test_history in [algo.history_return_price_class,
                              algo.history_return_price_decorator]:
             np.testing.assert_array_equal(
-                    range(2, 8),
-                    test_history[2].values.flatten()
+                range(2, 8),
+                test_history[2].values.flatten()
             )
 
             np.testing.assert_array_equal(
-                    range(2, 8),
-                    test_history[3].values.flatten()
+                range(2, 8),
+                test_history[3].values.flatten()
             )
 
             np.testing.assert_array_equal(
-                    range(4, 12),
-                    test_history[4].values.flatten()
+                range(4, 12),
+                test_history[4].values.flatten()
             )
 
     def test_passing_of_args(self):