[WAYANG-#8] Update imports

Signed-off-by: bertty <bertty@apache.org>
diff --git a/python/src/pywy/dataquanta.py b/python/src/pywy/dataquanta.py
index f44540e..2854b6b 100644
--- a/python/src/pywy/dataquanta.py
+++ b/python/src/pywy/dataquanta.py
@@ -1,7 +1,7 @@
 from typing import Set
 
 from pywy.translate.translator import Translator
-from pywy.types import (GenericTco, Predicate, Function, FlatmapFunction, IterableO)
+from pywy.types import ( GenericTco, Predicate, Function, FlatmapFunction, IterableO )
 from pywy.wayangplan import *
 from pywy.wayangplan.wayang import PywyPlan
 from pywy.platforms.basic.plugin import Plugin
diff --git a/python/src/pywy/graph/graph.py b/python/src/pywy/graph/graph.py
index 6e0a2d0..ff1c68c 100644
--- a/python/src/pywy/graph/graph.py
+++ b/python/src/pywy/graph/graph.py
@@ -1,5 +1,5 @@
 from pywy.types import T
-from typing import Iterable, Dict, Callable, List, Any, Generic
+from typing import ( Iterable, Dict, Callable, List, Any, Generic )
 
 
 class GraphNode(Generic[T]):
diff --git a/python/src/pywy/graph/graphtypes.py b/python/src/pywy/graph/graphtypes.py
index cef0ff0..fdd1280 100644
--- a/python/src/pywy/graph/graphtypes.py
+++ b/python/src/pywy/graph/graphtypes.py
@@ -1,6 +1,6 @@
-from typing import Iterable, List, Tuple
+from typing import ( Iterable, List )
 
-from pywy.graph.graph import GraphNode, WayangGraph
+from pywy.graph.graph import ( GraphNode, WayangGraph )
 from pywy.wayangplan.base import WyOperator
 
 class NodeOperator(GraphNode[WyOperator]):
diff --git a/python/src/pywy/platforms/basic/plugin.py b/python/src/pywy/platforms/basic/plugin.py
index 88da7f7..1f156d9 100644
--- a/python/src/pywy/platforms/basic/plugin.py
+++ b/python/src/pywy/platforms/basic/plugin.py
@@ -1,4 +1,4 @@
-from typing import List, Set
+from typing import Set
 
 from pywy.platforms.basic.platform import Platform
 from pywy.platforms.basic.mapping import Mapping
diff --git a/python/src/pywy/platforms/python/operators/PyFilterOperator.py b/python/src/pywy/platforms/python/operators/PyFilterOperator.py
index e01d431..7c0bbf7 100644
--- a/python/src/pywy/platforms/python/operators/PyFilterOperator.py
+++ b/python/src/pywy/platforms/python/operators/PyFilterOperator.py
@@ -1,9 +1,15 @@
+from typing import Set
 from pywy.wayangplan.unary import FilterOperator
 from pywy.platforms.python.operators.PythonExecutionOperator import PythonExecutionOperator
-from pywy.platforms.python.channels import (Channel, ChannelDescriptor, PyIteratorChannel,
-                                            PyIteratorChannelDescriptor, PyCallableChannelDescriptor,
-                                            PyCallableChannel)
-from typing import Set
+from pywy.platforms.python.channels import (
+                                                Channel,
+                                                ChannelDescriptor,
+                                                PyIteratorChannel,
+                                                PyIteratorChannelDescriptor,
+                                                PyCallableChannelDescriptor,
+                                                PyCallableChannel
+                                            )
+
 
 class PyFilterOperator(FilterOperator, PythonExecutionOperator):
 
diff --git a/python/src/pywy/platforms/python/operators/PyTextFileSinkOperator.py b/python/src/pywy/platforms/python/operators/PyTextFileSinkOperator.py
index 11a779b..6d9ffaa 100644
--- a/python/src/pywy/platforms/python/operators/PyTextFileSinkOperator.py
+++ b/python/src/pywy/platforms/python/operators/PyTextFileSinkOperator.py
@@ -1,12 +1,13 @@
+from typing import Set
 from pywy.wayangplan.sink import TextFileSink
 from pywy.platforms.python.operators.PythonExecutionOperator import PythonExecutionOperator
 from pywy.platforms.python.channels import (
-                                                    Channel,
-                                                    ChannelDescriptor,
-                                                    PyIteratorChannel,
-                                                    PyIteratorChannelDescriptor
-                                                )
-from typing import Set
+                                                Channel,
+                                                ChannelDescriptor,
+                                                PyIteratorChannel,
+                                                PyIteratorChannelDescriptor
+                                            )
+
 
 class PyTextFileSinkOperator(TextFileSink, PythonExecutionOperator):
 
diff --git a/python/src/pywy/platforms/python/operators/PyTextFileSourceOperator.py b/python/src/pywy/platforms/python/operators/PyTextFileSourceOperator.py
index cc36605..96d9f96 100644
--- a/python/src/pywy/platforms/python/operators/PyTextFileSourceOperator.py
+++ b/python/src/pywy/platforms/python/operators/PyTextFileSourceOperator.py
@@ -1,13 +1,13 @@
+from typing import Set
 from pywy.wayangplan.source import TextFileSource
 from pywy.platforms.python.operators.PythonExecutionOperator import PythonExecutionOperator
 from pywy.platforms.python.channels import (
-                                                    Channel,
-                                                    ChannelDescriptor,
-                                                    PyIteratorChannel,
-                                                    PyIteratorChannelDescriptor,
-                                                    PyFileChannelDescriptor
-                                                )
-from typing import Set
+                                                Channel,
+                                                ChannelDescriptor,
+                                                PyIteratorChannel,
+                                                PyIteratorChannelDescriptor
+                                            )
+
 
 class PyTextFileSourceOperator(TextFileSource, PythonExecutionOperator):
 
diff --git a/python/src/pywy/platforms/python/plugin/plugin.py b/python/src/pywy/platforms/python/plugin/plugin.py
index 0d42db7..010c49c 100644
--- a/python/src/pywy/platforms/python/plugin/plugin.py
+++ b/python/src/pywy/platforms/python/plugin/plugin.py
@@ -3,7 +3,6 @@
 from pywy.platforms.python.mappings import PywyOperatorMappings
 
 
-
 class PythonPlugin(Plugin):
 
     def __init__(self):
diff --git a/python/src/pywy/translate/translator.py b/python/src/pywy/translate/translator.py
index bb646c4..288ea90 100644
--- a/python/src/pywy/translate/translator.py
+++ b/python/src/pywy/translate/translator.py
@@ -1,6 +1,5 @@
-from pywy.graph.graphtypes import WGraphOfVec, NodeVec
+from pywy.graph.graphtypes import ( WGraphOfVec, NodeVec )
 from pywy.platforms.basic.plugin import Plugin
-from pywy.wayangplan import WyOperator
 from pywy.wayangplan.wayang import PywyPlan
 from pywy.platforms.basic.mapping import Mapping
 
diff --git a/python/src/pywy/types.py b/python/src/pywy/types.py
index 8be502e..4a0979f 100644
--- a/python/src/pywy/types.py
+++ b/python/src/pywy/types.py
@@ -1,4 +1,4 @@
-from typing import ( Generic, TypeVar, Callable, Hashable, Iterable)
+from typing import ( Generic, TypeVar, Callable, Hashable, Iterable )
 from inspect import signature
 
 T = TypeVar("T")   # Type
diff --git a/python/src/pywy/wayangplan/base.py b/python/src/pywy/wayangplan/base.py
index 92d4dfc..1eedf1b 100644
--- a/python/src/pywy/wayangplan/base.py
+++ b/python/src/pywy/wayangplan/base.py
@@ -1,4 +1,4 @@
-from typing import (TypeVar, Optional, List, Set)
+from typing import ( TypeVar, Optional, List, Set )
 from pywy.platforms.basic.channel import ChannelDescriptor
 
 class WyOperator:
diff --git a/python/src/pywy/wayangplan/unary.py b/python/src/pywy/wayangplan/unary.py
index 26c2840..aa1d957 100644
--- a/python/src/pywy/wayangplan/unary.py
+++ b/python/src/pywy/wayangplan/unary.py
@@ -1,15 +1,16 @@
+from itertools import chain
 from pywy.wayangplan.base import WyOperator
 from pywy.types import (
-                                GenericTco,
-                                GenericUco,
-                                Predicate,
-                                getTypePredicate,
-                                Function,
-                                getTypeFunction,
-                                FlatmapFunction,
-                                getTypeFlatmapFunction
-                            )
-from itertools import chain
+                            GenericTco,
+                            GenericUco,
+                            Predicate,
+                            getTypePredicate,
+                            Function,
+                            getTypeFunction,
+                            FlatmapFunction,
+                            getTypeFlatmapFunction
+                        )
+
 
 
 class UnaryToUnaryOperator(WyOperator):
diff --git a/python/src/pywy/wayangplan/wayang.py b/python/src/pywy/wayangplan/wayang.py
index c4d8205..1e8b16a 100644
--- a/python/src/pywy/wayangplan/wayang.py
+++ b/python/src/pywy/wayangplan/wayang.py
@@ -1,7 +1,7 @@
-from typing import Iterable, Set
+from typing import ( Iterable, Set )
 
 from pywy.graph.graph import WayangGraph
-from pywy.graph.graphtypes import WGraphOfOperator, NodeOperator, WGraphOfVec, NodeVec
+from pywy.graph.graphtypes import ( NodeOperator, WGraphOfVec, NodeVec )
 from pywy.wayangplan.sink import SinkOperator
 from pywy.platforms.basic.plugin import Plugin