!1712 clean pylint warnings of parallel test cases

Merge pull request !1712 from yihuaijie/master

tests/st/auto_parallel/resnet50_expand_loss.py

@@ -15,7 +15,6 @@
 
 import os
 import numpy as np
-import pytest
 
 import mindspore.common.dtype as mstype
 import mindspore.context as context
@@ -113,8 +112,7 @@ class ResidualBlock(nn.Cell):
     def __init__(self,
                  in_channels,
                  out_channels,
-                 stride=1,
-                 momentum=0.9):
+                 stride=1):
         super(ResidualBlock, self).__init__()
 
         out_chls = out_channels // self.expansion

tests/ut/python/parallel/test_auto_parallel_flag.py

@@ -39,10 +39,10 @@ class MindDataSet(MindData):
         if self._size < self._iter_num:
             raise StopIteration
         self._iter_num += 1
-        next = []
-        for shape, type in zip(self._output_shapes, self._np_types):
-            next.append(Tensor(np.ones(shape).astype(type)))
-        return tuple(next)
+        next_ = []
+        for shape, type_ in zip(self._output_shapes, self._np_types):
+            next_.append(Tensor(np.ones(shape).astype(type_)))
+        return tuple(next_)
 
 
 class Net(nn.Cell):
@@ -53,8 +53,8 @@ class Net(nn.Cell):
         self.matmul = P.MatMul()
         self.add = P.TensorAdd()
 
-    def construct(self, input):
-        output = self.add(self.matmul(input, self.weight), self.bias)
+    def construct(self, input_):
+        output = self.add(self.matmul(input_, self.weight), self.bias)
         return output
 
 
@@ -67,9 +67,9 @@ class NetFP16(nn.Cell):
         self.add = P.TensorAdd()
         self.cast = P.Cast()
 
-    def construct(self, input):
+    def construct(self, input_):
         output = self.cast(
-            self.add(self.matmul(self.cast(input, mstype.float16), self.cast(self.weight, mstype.float16)),
+            self.add(self.matmul(self.cast(input_, mstype.float16), self.cast(self.weight, mstype.float16)),
                      self.cast(self.bias, mstype.float16)), mstype.float32)
         return output
 
@@ -107,5 +107,5 @@ def test_auto_parallel_flag():
     optimizer = Momentum(net.trainable_params(), learning_rate=0.1, momentum=0.9)
     model = Model(net, loss_fn=loss, optimizer=optimizer, metrics=None, loss_scale_manager=scale_manager)
     model.train(2, dataset)
-    assert(model._train_network.get_flags()["auto_parallel"] == True)
+    assert model._train_network.get_flags()["auto_parallel"]
     context.reset_auto_parallel_context()

tests/ut/python/parallel/test_embeddinglookup.py

@@ -17,9 +17,7 @@ import numpy as np
 import mindspore as ms
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore import context
 from mindspore.common.api import _executor
-from mindspore.ops import composite as C
 from mindspore.ops import operations as P
 from tests.ut.python.ops.test_math_ops import VirtualLoss