Reverting changes

Author: ryankarlos

pandas/core/reshape/concat.py

@@ -2,8 +2,10 @@
 concat routines
 """
 
+import numpy as np
+
 from pandas import (
-    DataFrame, Index, MultiIndex, Series, compat, concat as _concat, np)
+    DataFrame, Index, MultiIndex, Series, compat, concat as _concat)
 from pandas.core import common as com
 from pandas.core.arrays.categorical import (
     _factorize_from_iterable, _factorize_from_iterables)

pandas/core/reshape/tile.py

@@ -3,6 +3,8 @@
 """
 from functools import partial
 
+import numpy as np
+
 from pandas._libs.lib import infer_dtype
 
 from pandas.core.dtypes.common import (
@@ -12,7 +14,7 @@
 
 from pandas import (
     Categorical, Index, Interval, IntervalIndex, Series, Timedelta, Timestamp,
-    isna, np, to_datetime, to_timedelta)
+    isna, to_datetime, to_timedelta)
 import pandas.core.algorithms as algos
 import pandas.core.nanops as nanops