style: fix import format at pandas/core/computation (pandas-dev#23388)

Author: streeck

pandas/core/computation/align.py

@@ -1,15 +1,16 @@
 """Core eval alignment algorithms
 """
 
-import warnings
 from functools import partial, wraps
-from pandas.compat import zip, range
+import warnings
 
 import numpy as np
 
+from pandas.compat import range, zip
+from pandas.errors import PerformanceWarning
+
 import pandas as pd
 from pandas import compat
-from pandas.errors import PerformanceWarning
 import pandas.core.common as com
 from pandas.core.computation.common import _result_type_many
 

pandas/core/computation/check.py

@@ -1,5 +1,5 @@
-import warnings
 from distutils.version import LooseVersion
+import warnings
 
 _NUMEXPR_INSTALLED = False
 _MIN_NUMEXPR_VERSION = "2.6.1"

pandas/core/computation/common.py

@@ -1,7 +1,9 @@
 import numpy as np
-import pandas as pd
+
 from pandas.compat import reduce
 
+import pandas as pd
+
 
 def _ensure_decoded(s):
     """ if we have bytes, decode them to unicode """

pandas/core/computation/engines.py

@@ -4,14 +4,14 @@
 
 import abc
 
-from pandas import compat
 from pandas.compat import map
-import pandas.io.formats.printing as printing
+
+from pandas import compat
 from pandas.core.computation.align import _align, _reconstruct_object
 from pandas.core.computation.ops import (
-    UndefinedVariableError,
-    _mathops, _reductions)
+    UndefinedVariableError, _mathops, _reductions)
 
+import pandas.io.formats.printing as printing
 
 _ne_builtins = frozenset(_mathops + _reductions)
 

pandas/core/computation/eval.py

@@ -3,14 +3,17 @@
 """Top level ``eval`` module.
 """
 
-import warnings
 import tokenize
-from pandas.io.formats.printing import pprint_thing
-from pandas.core.computation.scope import _ensure_scope
+import warnings
+
 from pandas.compat import string_types
-from pandas.core.computation.engines import _engines
 from pandas.util._validators import validate_bool_kwarg
 
+from pandas.core.computation.engines import _engines
+from pandas.core.computation.scope import _ensure_scope
+
+from pandas.io.formats.printing import pprint_thing
+
 
 def _check_engine(engine):
     """Make sure a valid engine is passed.

pandas/core/computation/expr.py

@@ -2,25 +2,25 @@
 """
 
 import ast
+from functools import partial
 import tokenize
 
-from functools import partial
 import numpy as np
 
+from pandas.compat import StringIO, lmap, reduce, string_types, zip
+
 import pandas as pd
 from pandas import compat
-from pandas.compat import StringIO, lmap, zip, reduce, string_types
-from pandas.core.base import StringMixin
 from pandas.core import common as com
-import pandas.io.formats.printing as printing
-from pandas.core.reshape.util import compose
+from pandas.core.base import StringMixin
 from pandas.core.computation.ops import (
-    _cmp_ops_syms, _bool_ops_syms,
-    _arith_ops_syms, _unary_ops_syms, is_term)
-from pandas.core.computation.ops import _reductions, _mathops, _LOCAL_TAG
-from pandas.core.computation.ops import Op, BinOp, UnaryOp, Term, Constant, Div
-from pandas.core.computation.ops import UndefinedVariableError, FuncNode
+    _LOCAL_TAG, BinOp, Constant, Div, FuncNode, Op, Term, UnaryOp,
+    UndefinedVariableError, _arith_ops_syms, _bool_ops_syms, _cmp_ops_syms,
+    _mathops, _reductions, _unary_ops_syms, is_term)
 from pandas.core.computation.scope import Scope
+from pandas.core.reshape.util import compose
+
+import pandas.io.formats.printing as printing
 
 
 def tokenize_string(source):

pandas/core/computation/expressions.py

@@ -7,6 +7,7 @@
 """
 
 import warnings
+
 import numpy as np
 
 import pandas.core.common as com

pandas/core/computation/ops.py

@@ -1,21 +1,23 @@
 """Operator classes for eval.
 """
 
-import operator as op
-from functools import partial
 from datetime import datetime
+from functools import partial
+import operator as op
 
 import numpy as np
 
+from pandas.compat import PY3, string_types, text_type
+
 from pandas.core.dtypes.common import is_list_like, is_scalar
+
 import pandas as pd
-from pandas.compat import PY3, string_types, text_type
-import pandas.core.common as com
-from pandas.io.formats.printing import pprint_thing, pprint_thing_encoded
 from pandas.core.base import StringMixin
+import pandas.core.common as com
 from pandas.core.computation.common import _ensure_decoded, _result_type_many
 from pandas.core.computation.scope import _DEFAULT_GLOBALS
 
+from pandas.io.formats.printing import pprint_thing, pprint_thing_encoded
 
 _reductions = 'sum', 'prod'
 

pandas/core/computation/pytables.py

@@ -2,20 +2,24 @@
 
 import ast
 from functools import partial
+
 import numpy as np
-import pandas as pd
+
+from pandas.compat import DeepChainMap, string_types, u
 
 from pandas.core.dtypes.common import is_list_like
-import pandas.core.common as com
-from pandas.compat import u, string_types, DeepChainMap
+
+import pandas as pd
 from pandas.core.base import StringMixin
-from pandas.io.formats.printing import pprint_thing, pprint_thing_encoded
+import pandas.core.common as com
 from pandas.core.computation import expr, ops
-from pandas.core.computation.ops import is_term, UndefinedVariableError
-from pandas.core.computation.expr import BaseExprVisitor
 from pandas.core.computation.common import _ensure_decoded
+from pandas.core.computation.expr import BaseExprVisitor
+from pandas.core.computation.ops import UndefinedVariableError, is_term
 from pandas.core.tools.timedeltas import _coerce_scalar_to_timedelta_type
 
+from pandas.io.formats.printing import pprint_thing, pprint_thing_encoded
+
 
 class Scope(expr.Scope):
     __slots__ = 'queryables',

pandas/core/computation/scope.py

@@ -2,18 +2,18 @@
 Module for scope operations
 """
 
-import sys
-import struct
-import inspect
 import datetime
+import inspect
 import itertools
 import pprint
+import struct
+import sys
 
 import numpy as np
 
-import pandas
+from pandas.compat import DeepChainMap, StringIO, map
+
 import pandas as pd  # noqa
-from pandas.compat import DeepChainMap, map, StringIO
 from pandas.core.base import StringMixin
 import pandas.core.computation as compu
 
@@ -48,7 +48,7 @@ def _raw_hex_id(obj):
 
 
 _DEFAULT_GLOBALS = {
-    'Timestamp': pandas._libs.tslib.Timestamp,
+    'Timestamp': pd._libs.tslib.Timestamp,
     'datetime': datetime.datetime,
     'True': True,
     'False': False,

setup.cfg

@@ -164,16 +164,6 @@ skip=
     pandas/core/sparse/series.py,
     pandas/core/sparse/frame.py,
     pandas/core/sparse/scipy_sparse.py,
-    pandas/core/computation/check.py,
-    pandas/core/computation/ops.py,
-    pandas/core/computation/pytables.py,
-    pandas/core/computation/eval.py,
-    pandas/core/computation/expressions.py,
-    pandas/core/computation/common.py,
-    pandas/core/computation/engines.py,
-    pandas/core/computation/expr.py,
-    pandas/core/computation/align.py,
-    pandas/core/computation/scope.py,
     pandas/tests/test_errors.py,
     pandas/tests/test_base.py,
     pandas/tests/test_register_accessor.py,