fixup! ENH: Fix Pandas 0.19.2 compatibility issues

Author: Peque

tests/pipeline/test_blaze.py

@@ -15,7 +15,6 @@
 from numpy.testing.utils import assert_array_almost_equal
 from odo import odo
 import pandas as pd
-from pandas.util.testing import assert_frame_equal
 from toolz import keymap, valmap, concatv
 from toolz.curried import operator as op
 
@@ -39,7 +38,11 @@
     tmp_asset_finder,
 )
 from zipline.testing.fixtures import WithAssetFinder
-from zipline.testing.predicates import assert_equal, assert_isidentical
+from zipline.testing.predicates import (
+    assert_equal,
+    assert_frame_equal,
+    assert_isidentical,
+)
 from zipline.utils.numpy_utils import float64_dtype, int64_dtype
 from zipline.utils.pandas_utils import empty_dataframe
 

tests/test_examples.py

@@ -47,8 +47,6 @@ def init_class_fixtures(cls):
             tar.extractall(cls.tmpdir.path)
 
         cls.expected_perf = dataframe_cache(
-            # Use a fixed pandas version until we are able to rebuild market
-            # data with `rebuild_example_data`.
             cls.tmpdir.getpath('example_data/expected_perf/0-18-1'),
             serialization='pickle',
         )

zipline/testing/predicates.py

@@ -461,9 +461,6 @@ def _register_assert_equal_wrapper(type_, assert_eq):
     """
     @assert_equal.register(type_, type_)
     def assert_ndframe_equal(result, expected, path=(), msg='', **kwargs):
-        # By default, do not compare internal Categorical exactly
-        if not 'check_categorical' in kwargs:
-            kwargs['check_categorical'] = False
         try:
             assert_eq(
                 result,