fix imports

Author: anjsudh

pandas/core/computation/expressions.py

@@ -11,7 +11,7 @@
 import numpy as np
 
 import pandas.core.common as com
-from pandas.core.computation.check import _NUMEXPR_INSTALLED
+from pandas.core.computation.check import _NUMEXPR_INSTALLED, _NUMEXPR_VERSION
 from pandas.core.config import get_option
 
 if _NUMEXPR_INSTALLED:

pandas/core/computation/ops.py

@@ -15,9 +15,8 @@
 import pandas as pd
 from pandas.core.base import StringMixin
 import pandas.core.common as com
-from pandas.core.computation.check import _NUMEXPR_VERSION
+from pandas.core.computation.check import _NUMEXPR_INSTALLED, _NUMEXPR_VERSION
 from pandas.core.computation.common import _ensure_decoded, _result_type_many
-from pandas.core.computation.expressions import _NUMEXPR_INSTALLED
 from pandas.core.computation.scope import _DEFAULT_GLOBALS
 
 from pandas.io.formats.printing import pprint_thing, pprint_thing_encoded

pandas/tests/computation/test_eval.py

@@ -18,7 +18,7 @@
 from pandas.core.computation.engines import _engines, NumExprClobberingError
 from pandas.core.computation.expr import PythonExprVisitor, PandasExprVisitor
 from pandas.core.computation.expressions import (
-    _USE_NUMEXPR, _NUMEXPR_INSTALLED)
+    _USE_NUMEXPR, _NUMEXPR_INSTALLED, _NUMEXPR_VERSION)
 from pandas.core.computation.ops import (
     _binary_ops_dict,
     _special_case_arith_ops_syms,
@@ -32,7 +32,6 @@
                                  assert_numpy_array_equal, assert_series_equal,
                                  assert_produces_warning)
 from pandas.compat import PY3, reduce
-from pandas.core.computation.check import _NUMEXPR_VERSION
 
 
 _series_frame_incompatible = _bool_ops_syms