!1478 [Dataset] clean pylint.

tests/perf_test/mindrecord/imagenet/perf_read_imagenet.py

@@ -13,8 +13,8 @@
 # limitations under the License.
 # ============================================================================
 """test dataset performance about mindspore.MindDataset, mindspore.TFRecordDataset, tf.data.TFRecordDataset"""
-import tensorflow as tf
 import time
+import tensorflow as tf
 
 import mindspore.dataset as ds
 from mindspore.mindrecord import FileReader

tests/ut/python/dataset/test_apply.py

@@ -32,9 +32,9 @@ def test_apply_generator_case():
     data1 = ds.GeneratorDataset(generator_1d, ["data"])
     data2 = ds.GeneratorDataset(generator_1d, ["data"])
 
-    def dataset_fn(ds):
-        ds = ds.repeat(2)
-        return ds.batch(4)
+    def dataset_fn(ds_):
+        ds_ = ds_.repeat(2)
+        return ds_.batch(4)
 
     data1 = data1.apply(dataset_fn)
     data2 = data2.repeat(2)
@@ -52,11 +52,11 @@ def test_apply_imagefolder_case():
     decode_op = vision.Decode()
     normalize_op = vision.Normalize([121.0, 115.0, 100.0], [70.0, 68.0, 71.0])
 
-    def dataset_fn(ds):
-        ds = ds.map(operations=decode_op)
-        ds = ds.map(operations=normalize_op)
-        ds = ds.repeat(2)
-        return ds
+    def dataset_fn(ds_):
+        ds_ = ds_.map(operations=decode_op)
+        ds_ = ds_.map(operations=normalize_op)
+        ds_ = ds_.repeat(2)
+        return ds_
 
     data1 = data1.apply(dataset_fn)
     data2 = data2.map(operations=decode_op)
@@ -67,125 +67,125 @@ def test_apply_imagefolder_case():
         assert np.array_equal(item1["image"], item2["image"])
 
 
-def test_apply_flow_case_0(id=0):
+def test_apply_flow_case_0(id_=0):
     # apply control flow operations
     data1 = ds.GeneratorDataset(generator_1d, ["data"])
 
-    def dataset_fn(ds):
-        if id == 0:
-            ds = ds.batch(4)
-        elif id == 1:
-            ds = ds.repeat(2)
-        elif id == 2:
-            ds = ds.batch(4)
-            ds = ds.repeat(2)
+    def dataset_fn(ds_):
+        if id_ == 0:
+            ds_ = ds_.batch(4)
+        elif id_ == 1:
+            ds_ = ds_.repeat(2)
+        elif id_ == 2:
+            ds_ = ds_.batch(4)
+            ds_ = ds_.repeat(2)
         else:
-            ds = ds.shuffle(buffer_size=4)
-        return ds
+            ds_ = ds_.shuffle(buffer_size=4)
+        return ds_
 
     data1 = data1.apply(dataset_fn)
     num_iter = 0
     for _ in data1.create_dict_iterator():
         num_iter = num_iter + 1
 
-    if id == 0:
+    if id_ == 0:
         assert num_iter == 16
-    elif id == 1:
+    elif id_ == 1:
         assert num_iter == 128
-    elif id == 2:
+    elif id_ == 2:
         assert num_iter == 32
     else:
         assert num_iter == 64
 
 
-def test_apply_flow_case_1(id=1):
+def test_apply_flow_case_1(id_=1):
     # apply control flow operations
     data1 = ds.GeneratorDataset(generator_1d, ["data"])
 
-    def dataset_fn(ds):
-        if id == 0:
-            ds = ds.batch(4)
-        elif id == 1:
-            ds = ds.repeat(2)
-        elif id == 2:
-            ds = ds.batch(4)
-            ds = ds.repeat(2)
+    def dataset_fn(ds_):
+        if id_ == 0:
+            ds_ = ds_.batch(4)
+        elif id_ == 1:
+            ds_ = ds_.repeat(2)
+        elif id_ == 2:
+            ds_ = ds_.batch(4)
+            ds_ = ds_.repeat(2)
         else:
-            ds = ds.shuffle(buffer_size=4)
-        return ds
+            ds_ = ds_.shuffle(buffer_size=4)
+        return ds_
 
     data1 = data1.apply(dataset_fn)
     num_iter = 0
     for _ in data1.create_dict_iterator():
         num_iter = num_iter + 1
 
-    if id == 0:
+    if id_ == 0:
         assert num_iter == 16
-    elif id == 1:
+    elif id_ == 1:
         assert num_iter == 128
-    elif id == 2:
+    elif id_ == 2:
         assert num_iter == 32
     else:
         assert num_iter == 64
 
 
-def test_apply_flow_case_2(id=2):
+def test_apply_flow_case_2(id_=2):
     # apply control flow operations
     data1 = ds.GeneratorDataset(generator_1d, ["data"])
 
-    def dataset_fn(ds):
-        if id == 0:
-            ds = ds.batch(4)
-        elif id == 1:
-            ds = ds.repeat(2)
-        elif id == 2:
-            ds = ds.batch(4)
-            ds = ds.repeat(2)
+    def dataset_fn(ds_):
+        if id_ == 0:
+            ds_ = ds_.batch(4)
+        elif id_ == 1:
+            ds_ = ds_.repeat(2)
+        elif id_ == 2:
+            ds_ = ds_.batch(4)
+            ds_ = ds_.repeat(2)
         else:
-            ds = ds.shuffle(buffer_size=4)
-        return ds
+            ds_ = ds_.shuffle(buffer_size=4)
+        return ds_
 
     data1 = data1.apply(dataset_fn)
     num_iter = 0
     for _ in data1.create_dict_iterator():
         num_iter = num_iter + 1
 
-    if id == 0:
+    if id_ == 0:
         assert num_iter == 16
-    elif id == 1:
+    elif id_ == 1:
         assert num_iter == 128
-    elif id == 2:
+    elif id_ == 2:
         assert num_iter == 32
     else:
         assert num_iter == 64
 
 
-def test_apply_flow_case_3(id=3):
+def test_apply_flow_case_3(id_=3):
     # apply control flow operations
     data1 = ds.GeneratorDataset(generator_1d, ["data"])
 
-    def dataset_fn(ds):
-        if id == 0:
-            ds = ds.batch(4)
-        elif id == 1:
-            ds = ds.repeat(2)
-        elif id == 2:
-            ds = ds.batch(4)
-            ds = ds.repeat(2)
+    def dataset_fn(ds_):
+        if id_ == 0:
+            ds_ = ds_.batch(4)
+        elif id_ == 1:
+            ds_ = ds_.repeat(2)
+        elif id_ == 2:
+            ds_ = ds_.batch(4)
+            ds_ = ds_.repeat(2)
         else:
-            ds = ds.shuffle(buffer_size=4)
-        return ds
+            ds_ = ds_.shuffle(buffer_size=4)
+        return ds_
 
     data1 = data1.apply(dataset_fn)
     num_iter = 0
     for _ in data1.create_dict_iterator():
         num_iter = num_iter + 1
 
-    if id == 0:
+    if id_ == 0:
         assert num_iter == 16
-    elif id == 1:
+    elif id_ == 1:
         assert num_iter == 128
-    elif id == 2:
+    elif id_ == 2:
         assert num_iter == 32
     else:
         assert num_iter == 64
@@ -195,11 +195,11 @@ def test_apply_exception_case():
     # apply exception operations
     data1 = ds.GeneratorDataset(generator_1d, ["data"])
 
-    def dataset_fn(ds):
-        ds = ds.repeat(2)
-        return ds.batch(4)
+    def dataset_fn(ds_):
+        ds_ = ds_.repeat(2)
+        return ds_.batch(4)
 
-    def exception_fn(ds):
+    def exception_fn():
         return np.array([[0], [1], [3], [4], [5]])
 
     try:
@@ -220,12 +220,12 @@ def test_apply_exception_case():
 
     try:
         data2 = data1.apply(dataset_fn)
-        data3 = data1.apply(dataset_fn)
+        _ = data1.apply(dataset_fn)
         for _, _ in zip(data1.create_dict_iterator(), data2.create_dict_iterator()):
             pass
         assert False
-    except ValueError:
-        pass
+    except ValueError as e:
+        logger.info("Got an exception in DE: {}".format(str(e)))
 
 
 if __name__ == '__main__':

tests/ut/python/dataset/test_autocontrast.py

@@ -58,7 +58,7 @@ def test_auto_contrast(plot=False):
 
     ds_original = ds_original.batch(512)
 
-    for idx, (image, label) in enumerate(ds_original):
+    for idx, (image, _) in enumerate(ds_original):
         if idx == 0:
             images_original = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -79,7 +79,7 @@ def test_auto_contrast(plot=False):
 
     ds_auto_contrast = ds_auto_contrast.batch(512)
 
-    for idx, (image, label) in enumerate(ds_auto_contrast):
+    for idx, (image, _) in enumerate(ds_auto_contrast):
         if idx == 0:
             images_auto_contrast = np.transpose(image, (0, 2, 3, 1))
         else:

tests/ut/python/dataset/test_batch.py

@@ -273,7 +273,7 @@ def test_batch_exception_01():
         data1 = data1.batch(batch_size=2, drop_remainder=True, num_parallel_workers=0)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "num_parallel_workers" in str(e)
 
@@ -290,7 +290,7 @@ def test_batch_exception_02():
         data1 = data1.batch(3, drop_remainder=True, num_parallel_workers=-1)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "num_parallel_workers" in str(e)
 
@@ -307,7 +307,7 @@ def test_batch_exception_03():
         data1 = data1.batch(batch_size=0)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "batch_size" in str(e)
 
@@ -324,7 +324,7 @@ def test_batch_exception_04():
         data1 = data1.batch(batch_size=-1)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "batch_size" in str(e)
 
@@ -341,7 +341,7 @@ def test_batch_exception_05():
         data1 = data1.batch(batch_size=False)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "batch_size" in str(e)
 
@@ -358,7 +358,7 @@ def test_batch_exception_07():
         data1 = data1.batch(3, drop_remainder=0)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "drop_remainder" in str(e)
 
@@ -375,7 +375,7 @@ def test_batch_exception_08():
         data1 = data1.batch(3, drop_remainder=True, num_parallel_workers=False)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "num_parallel_workers" in str(e)
 
@@ -392,7 +392,7 @@ def test_batch_exception_09():
         data1 = data1.batch(drop_remainder=True, num_parallel_workers=4)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "batch_size" in str(e)
 
@@ -409,7 +409,7 @@ def test_batch_exception_10():
         data1 = data1.batch(batch_size=4, num_parallel_workers=8192)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "num_parallel_workers" in str(e)
 
@@ -429,7 +429,7 @@ def test_batch_exception_11():
         data1 = data1.batch(batch_size, num_parallel_workers)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "drop_remainder" in str(e)
 
@@ -450,7 +450,7 @@ def test_batch_exception_12():
         data1 = data1.batch(drop_remainder, batch_size=batch_size)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "batch_size" in str(e)
 
@@ -469,7 +469,7 @@ def test_batch_exception_13():
         data1 = data1.batch(batch_size, shard_id=1)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "shard_id" in str(e)
 

tests/ut/python/dataset/test_concat.py

@@ -24,18 +24,18 @@ from mindspore import log as logger
 # In generator dataset: Number of rows is 3; its values are 0, 1, 2
 def generator():
     for i in range(3):
-        yield np.array([i]),
+        yield (np.array([i]),)
 
 
 # In generator_10 dataset: Number of rows is 7; its values are 3, 4, 5 ... 9
 def generator_10():
     for i in range(3, 10):
-        yield np.array([i]),
+        yield (np.array([i]),)
 
 # In generator_20 dataset: Number of rows is 10; its values are 10, 11, 12 ... 19
 def generator_20():
     for i in range(10, 20):
-        yield np.array([i]),
+        yield (np.array([i]),)
 
 
 def test_concat_01():
@@ -85,7 +85,7 @@ def test_concat_03():
     data3 = data1 + data2
 
     try:
-        for i, d in enumerate(data3):
+        for _, _ in enumerate(data3):
             pass
         assert False
     except RuntimeError:
@@ -104,7 +104,7 @@ def test_concat_04():
     data3 = data1 + data2
 
     try:
-        for i, d in enumerate(data3):
+        for _, _ in enumerate(data3):
             pass
         assert False
     except RuntimeError:
@@ -125,7 +125,7 @@ def test_concat_05():
     data3 = data1 + data2
 
     try:
-        for i, d in enumerate(data3):
+        for _, _ in enumerate(data3):
             pass
         assert False
     except RuntimeError:

tests/ut/python/dataset/test_config.py

@@ -31,7 +31,7 @@ SCHEMA_DIR = "../data/dataset/test_tf_file_3_images/datasetSchema.json"
 
 def test_basic():
     """
-    Test basic configuration functions    
+    Test basic configuration functions
     """
     # Save original configuration values
     num_parallel_workers_original = ds.config.get_num_parallel_workers()
@@ -138,7 +138,7 @@ def test_deterministic_run_fail():
         for item1, item2 in zip(data1.create_dict_iterator(), data2.create_dict_iterator()):
             np.testing.assert_equal(item1["image"], item2["image"])
 
-    except BaseException as e:
+    except Exception as e:
         # two datasets split the number out of the sequence a
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "Array" in str(e)
@@ -157,7 +157,7 @@ def test_deterministic_run_pass():
     # Save original configuration values
     num_parallel_workers_original = ds.config.get_num_parallel_workers()
     seed_original = ds.config.get_seed()
- 
+
     ds.config.set_seed(0)
     ds.config.set_num_parallel_workers(1)
 
@@ -179,7 +179,7 @@ def test_deterministic_run_pass():
     try:
         for item1, item2 in zip(data1.create_dict_iterator(), data2.create_dict_iterator()):
             np.testing.assert_equal(item1["image"], item2["image"])
-    except BaseException as e:
+    except Exception as e:
         # two datasets both use numbers from the generated sequence "a"
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "Array" in str(e)
@@ -344,7 +344,7 @@ def test_deterministic_python_seed_multi_thread():
 
     try:
         np.testing.assert_equal(data1_output, data2_output)
-    except BaseException as e:
+    except Exception as e:
         # expect output to not match during multi-threaded excution
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "Array" in str(e)

tests/ut/python/dataset/test_datasets_sharding.py

@@ -107,14 +107,20 @@ def test_tfrecord_shardings4(print_res=False):
         assert len(result_list) == expect_length
         assert set(result_list) == expect_set
 
-    check_result(sharding_config(2, 0, None, 1), 20, {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30})
-    check_result(sharding_config(2, 1, None, 1), 20, {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40})
+    check_result(sharding_config(2, 0, None, 1), 20,
+                 {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30})
+    check_result(sharding_config(2, 1, None, 1), 20,
+                 {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40})
     check_result(sharding_config(2, 0, 3, 1), 3, {11, 12, 21})
     check_result(sharding_config(2, 1, 3, 1), 3, {1, 2, 31})
-    check_result(sharding_config(2, 0, 40, 1), 20, {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30})
-    check_result(sharding_config(2, 1, 40, 1), 20, {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40})
-    check_result(sharding_config(2, 0, 55, 1), 20, {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30})
-    check_result(sharding_config(2, 1, 55, 1), 20, {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40})
+    check_result(sharding_config(2, 0, 40, 1), 20,
+                 {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30})
+    check_result(sharding_config(2, 1, 40, 1), 20,
+                 {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40})
+    check_result(sharding_config(2, 0, 55, 1), 20,
+                 {11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30})
+    check_result(sharding_config(2, 1, 55, 1), 20,
+                 {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40})
     check_result(sharding_config(3, 0, 8, 1), 8, {32, 33, 34, 11, 12, 13, 14, 31})
     check_result(sharding_config(3, 1, 8, 1), 8, {1, 2, 3, 4, 5, 6, 7, 8})
     check_result(sharding_config(3, 2, 8, 1), 8, {21, 22, 23, 24, 25, 26, 27, 28})

tests/ut/python/dataset/test_datasets_textfileop.py

@@ -49,7 +49,7 @@ def test_textline_dataset_totext():
         strs = i["text"].item().decode("utf8")
         assert strs == line[count]
         count += 1
-    assert (count == 5)
+    assert count == 5
     # Restore configuration num_parallel_workers
     ds.config.set_num_parallel_workers(original_num_parallel_workers)
 

tests/ut/python/dataset/test_datasets_voc.py

@@ -24,10 +24,10 @@ def test_voc_segmentation():
     data1 = ds.VOCDataset(DATA_DIR, task="Segmentation", mode="train", decode=True, shuffle=False)
     num = 0
     for item in data1.create_dict_iterator():
-        assert (item["image"].shape[0] == IMAGE_SHAPE[num])
-        assert (item["target"].shape[0] == TARGET_SHAPE[num])
+        assert item["image"].shape[0] == IMAGE_SHAPE[num]
+        assert item["target"].shape[0] == TARGET_SHAPE[num]
         num += 1
-    assert (num == 10)
+    assert num == 10
 
 
 def test_voc_detection():
@@ -35,12 +35,12 @@ def test_voc_detection():
     num = 0
     count = [0, 0, 0, 0, 0, 0]
     for item in data1.create_dict_iterator():
-        assert (item["image"].shape[0] == IMAGE_SHAPE[num])
+        assert item["image"].shape[0] == IMAGE_SHAPE[num]
         for bbox in item["annotation"]:
             count[bbox[0]] += 1
         num += 1
-    assert (num == 9)
-    assert (count == [3, 2, 1, 2, 4, 3])
+    assert num == 9
+    assert count == [3, 2, 1, 2, 4, 3]
 
 
 def test_voc_class_index():
@@ -58,8 +58,8 @@ def test_voc_class_index():
             assert (bbox[0] == 0 or bbox[0] == 1 or bbox[0] == 5)
             count[bbox[0]] += 1
         num += 1
-    assert (num == 6)
-    assert (count == [3, 2, 0, 0, 0, 3])
+    assert num == 6
+    assert count == [3, 2, 0, 0, 0, 3]
 
 
 def test_voc_get_class_indexing():
@@ -76,8 +76,8 @@ def test_voc_get_class_indexing():
             assert (bbox[0] == 0 or bbox[0] == 1 or bbox[0] == 2 or bbox[0] == 3 or bbox[0] == 4 or bbox[0] == 5)
             count[bbox[0]] += 1
         num += 1
-    assert (num == 9)
-    assert (count == [3, 2, 1, 2, 4, 3])
+    assert num == 9
+    assert count == [3, 2, 1, 2, 4, 3]
 
 
 def test_case_0():
@@ -93,9 +93,9 @@ def test_case_0():
     data1 = data1.batch(batch_size, drop_remainder=True)
 
     num = 0
-    for item in data1.create_dict_iterator():
+    for _ in data1.create_dict_iterator():
         num += 1
-    assert (num == 20)
+    assert num == 20
 
 
 def test_case_1():
@@ -110,9 +110,9 @@ def test_case_1():
     data1 = data1.batch(batch_size, drop_remainder=True, pad_info={})
 
     num = 0
-    for item in data1.create_dict_iterator():
+    for _ in data1.create_dict_iterator():
         num += 1
-    assert (num == 18)
+    assert num == 18
 
 
 def test_voc_exception():

tests/ut/python/dataset/test_equalize.py

@@ -58,7 +58,7 @@ def test_equalize(plot=False):
 
     ds_original = ds_original.batch(512)
 
-    for idx, (image, label) in enumerate(ds_original):
+    for idx, (image, _) in enumerate(ds_original):
         if idx == 0:
             images_original = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -79,7 +79,7 @@ def test_equalize(plot=False):
 
     ds_equalize = ds_equalize.batch(512)
 
-    for idx, (image, label) in enumerate(ds_equalize):
+    for idx, (image, _) in enumerate(ds_equalize):
         if idx == 0:
             images_equalize = np.transpose(image, (0, 2, 3, 1))
         else:

tests/ut/python/dataset/test_filterop.py

@@ -15,9 +15,7 @@
 
 import numpy as np
 
-import mindspore.common.dtype as mstype
 import mindspore.dataset as ds
-import mindspore.dataset.transforms.c_transforms as C
 import mindspore.dataset.transforms.vision.c_transforms as cde
 
 DATA_DIR = ["../data/dataset/test_tf_file_3_images/train-0000-of-0001.data"]
@@ -31,7 +29,6 @@ def test_diff_predicate_func():
             cde.Decode(),
             cde.Resize([64, 64])
         ]
-        type_cast_op = C.TypeCast(mstype.int32)
         dataset = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image", "label"], shuffle=False)
         dataset = dataset.map(input_columns=["image"], operations=transforms, num_parallel_workers=1)
         dataset = dataset.filter(input_columns=["image", "label"], predicate=predicate_func, num_parallel_workers=4)
@@ -40,7 +37,6 @@ def test_diff_predicate_func():
         label_list = []
         for data in dataset.create_dict_iterator():
             num_iter += 1
-            ori_img = data["image"]
             label = data["label"]
             label_list.append(label)
         assert num_iter == 1
@@ -200,6 +196,7 @@ def generator_1d_zip2():
 
 
 def filter_func_zip(data1, data2):
+    _ = data2
     if data1 > 20:
         return False
     return True
@@ -249,6 +246,7 @@ def test_filter_by_generator_with_zip_after():
 
 
 def filter_func_map(col1, col2):
+    _ = col2
     if col1[0] > 8:
         return True
     return False
@@ -262,6 +260,7 @@ def filter_func_map_part(col1):
 
 
 def filter_func_map_all(col1, col2):
+    _, _ = col1, col2
     return True
 
 
@@ -334,6 +333,7 @@ def test_filter_by_generator_with_rename():
 
 # test input_column
 def filter_func_input_column1(col1, col2):
+    _ = col2
     if col1[0] < 8:
         return True
     return False
@@ -346,6 +346,7 @@ def filter_func_input_column2(col1):
 
 
 def filter_func_input_column3(col1):
+    _ = col1
     return True
 
 
@@ -380,6 +381,7 @@ def generator_mc_p1(maxid=20):
 
 
 def filter_func_Partial_0(col1, col2, col3, col4):
+    _, _, _ = col2, col3, col4
     filter_data = [0, 1, 2, 3, 4, 11]
     if col1[0] in filter_data:
         return False
@@ -439,6 +441,7 @@ def test_filter_by_generator_Partial2():
 
 
 def filter_func_Partial(col1, col2):
+    _ = col2
     if col1[0] % 3 == 0:
         return True
     return False
@@ -461,6 +464,7 @@ def test_filter_by_generator_Partial():
 
 
 def filter_func_cifar(col1, col2):
+    _ = col1
     if col2 % 3 == 0:
         return True
     return False
@@ -490,6 +494,7 @@ def generator_sort2(maxid=20):
 
 
 def filter_func_part_sort(col1, col2, col3, col4, col5, col6):
+    _, _, _, _, _, _ = col1, col2, col3, col4, col5, col6
     return True
 
 

tests/ut/python/dataset/test_invert.py

@@ -58,7 +58,7 @@ def test_invert(plot=False):
 
     ds_original = ds_original.batch(512)
 
-    for idx, (image, label) in enumerate(ds_original):
+    for idx, (image, _) in enumerate(ds_original):
         if idx == 0:
             images_original = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -79,7 +79,7 @@ def test_invert(plot=False):
 
     ds_invert = ds_invert.batch(512)
 
-    for idx, (image, label) in enumerate(ds_invert):
+    for idx, (image, _) in enumerate(ds_invert):
         if idx == 0:
             images_invert = np.transpose(image, (0, 2, 3, 1))
         else:

tests/ut/python/dataset/test_minddataset.py

@@ -17,11 +17,11 @@ This is the test module for mindrecord
 """
 import collections
 import json
-import numpy as np
 import os
-import pytest
 import re
 import string
+import pytest
+import numpy as np
 
 import mindspore.dataset as ds
 import mindspore.dataset.transforms.vision.c_transforms as vision
@@ -46,9 +46,10 @@ def add_and_remove_cv_file():
     paths = ["{}{}".format(CV_FILE_NAME, str(x).rjust(1, '0'))
              for x in range(FILES_NUM)]
     for x in paths:
-        os.remove("{}".format(x)) if os.path.exists("{}".format(x)) else None
-        os.remove("{}.db".format(x)) if os.path.exists(
-            "{}.db".format(x)) else None
+        if os.path.exists("{}".format(x)):
+            os.remove("{}".format(x))
+        if os.path.exists("{}.db".format(x)):
+            os.remove("{}.db".format(x))
     writer = FileWriter(CV_FILE_NAME, FILES_NUM)
     data = get_data(CV_DIR_NAME)
     cv_schema_json = {"id": {"type": "int32"},
@@ -117,7 +118,9 @@ def add_and_remove_nlp_compress_file():
                                             255, 256, -32768, 32767, -32769, 32768, -2147483648,
                                             2147483647], dtype=np.int32), [-1]),
             "array_b": np.reshape(np.array([0, 1, -1, 127, -128, 128, -129, 255,
-                                            256, -32768, 32767, -32769, 32768, -2147483648, 2147483647, -2147483649, 2147483649, -922337036854775808, 9223372036854775807]), [1, -1]),
+                                            256, -32768, 32767, -32769, 32768,
+                                            -2147483648, 2147483647, -2147483649, 2147483649,
+                                            -922337036854775808, 9223372036854775807]), [1, -1]),
             "array_c": str.encode("nlp data"),
             "array_d": np.reshape(np.array([[-10, -127], [10, 127]]), [2, -1])
         })
@@ -151,7 +154,9 @@ def test_nlp_compress_data(add_and_remove_nlp_compress_file):
                                             255, 256, -32768, 32767, -32769, 32768, -2147483648,
                                             2147483647], dtype=np.int32), [-1]),
             "array_b": np.reshape(np.array([0, 1, -1, 127, -128, 128, -129, 255,
-                                            256, -32768, 32767, -32769, 32768, -2147483648, 2147483647, -2147483649, 2147483649, -922337036854775808, 9223372036854775807]), [1, -1]),
+                                            256, -32768, 32767, -32769, 32768,
+                                            -2147483648, 2147483647, -2147483649, 2147483649,
+                                            -922337036854775808, 9223372036854775807]), [1, -1]),
             "array_c": str.encode("nlp data"),
             "array_d": np.reshape(np.array([[-10, -127], [10, 127]]), [2, -1])
         })
@@ -194,9 +199,10 @@ def test_cv_minddataset_writer_tutorial():
     paths = ["{}{}".format(CV_FILE_NAME, str(x).rjust(1, '0'))
              for x in range(FILES_NUM)]
     for x in paths:
-        os.remove("{}".format(x)) if os.path.exists("{}".format(x)) else None
-        os.remove("{}.db".format(x)) if os.path.exists(
-            "{}.db".format(x)) else None
+        if os.path.exists("{}".format(x)):
+            os.remove("{}".format(x))
+        if os.path.exists("{}.db".format(x)):
+            os.remove("{}.db".format(x))
     writer = FileWriter(CV_FILE_NAME, FILES_NUM)
     data = get_data(CV_DIR_NAME)
     cv_schema_json = {"file_name": {"type": "string"}, "label": {"type": "int32"},
@@ -478,9 +484,10 @@ def test_cv_minddataset_reader_two_dataset_partition(add_and_remove_cv_file):
     paths = ["{}{}".format(CV1_FILE_NAME, str(x).rjust(1, '0'))
              for x in range(FILES_NUM)]
     for x in paths:
-        os.remove("{}".format(x)) if os.path.exists("{}".format(x)) else None
-        os.remove("{}.db".format(x)) if os.path.exists(
-            "{}.db".format(x)) else None
+        if os.path.exists("{}".format(x)):
+            os.remove("{}".format(x))
+        if os.path.exists("{}.db".format(x)):
+            os.remove("{}.db".format(x))
     writer = FileWriter(CV1_FILE_NAME, FILES_NUM)
     data = get_data(CV_DIR_NAME)
     cv_schema_json = {"id": {"type": "int32"},
@@ -779,7 +786,7 @@ def get_nlp_data(dir_name, vocab_file, num):
     """
     if not os.path.isdir(dir_name):
         raise IOError("Directory {} not exists".format(dir_name))
-    for root, dirs, files in os.walk(dir_name):
+    for root, _, files in os.walk(dir_name):
         for index, file_name_extension in enumerate(files):
             if index < num:
                 file_path = os.path.join(root, file_name_extension)
@@ -851,7 +858,7 @@ def test_write_with_multi_bytes_and_array_and_read_by_MindDataset():
     if os.path.exists("{}".format(mindrecord_file_name)):
         os.remove("{}".format(mindrecord_file_name))
     if os.path.exists("{}.db".format(mindrecord_file_name)):
-        os.remove("{}.db".format(x))
+        os.remove("{}.db".format(mindrecord_file_name))
     data = [{"file_name": "001.jpg", "label": 4,
              "image1": bytes("image1 bytes abc", encoding='UTF-8'),
              "image2": bytes("image1 bytes def", encoding='UTF-8'),

tests/ut/python/dataset/test_minddataset_exception.py

@@ -26,8 +26,10 @@ CV1_FILE_NAME = "./imagenet1.mindrecord"
 
 def create_cv_mindrecord(files_num):
     """tutorial for cv dataset writer."""
-    os.remove(CV_FILE_NAME) if os.path.exists(CV_FILE_NAME) else None
-    os.remove("{}.db".format(CV_FILE_NAME)) if os.path.exists("{}.db".format(CV_FILE_NAME)) else None
+    if os.path.exists(CV_FILE_NAME):
+        os.remove(CV_FILE_NAME)
+    if os.path.exists("{}.db".format(CV_FILE_NAME)):
+        os.remove("{}.db".format(CV_FILE_NAME))
     writer = FileWriter(CV_FILE_NAME, files_num)
     cv_schema_json = {"file_name": {"type": "string"}, "label": {"type": "int32"}, "data": {"type": "bytes"}}
     data = [{"file_name": "001.jpg", "label": 43, "data": bytes('0xffsafdafda', encoding='utf-8')}]
@@ -39,8 +41,10 @@ def create_cv_mindrecord(files_num):
 
 def create_diff_schema_cv_mindrecord(files_num):
     """tutorial for cv dataset writer."""
-    os.remove(CV1_FILE_NAME) if os.path.exists(CV1_FILE_NAME) else None
-    os.remove("{}.db".format(CV1_FILE_NAME)) if os.path.exists("{}.db".format(CV1_FILE_NAME)) else None
+    if os.path.exists(CV1_FILE_NAME):
+        os.remove(CV1_FILE_NAME)
+    if os.path.exists("{}.db".format(CV1_FILE_NAME)):
+        os.remove("{}.db".format(CV1_FILE_NAME))
     writer = FileWriter(CV1_FILE_NAME, files_num)
     cv_schema_json = {"file_name_1": {"type": "string"}, "label": {"type": "int32"}, "data": {"type": "bytes"}}
     data = [{"file_name_1": "001.jpg", "label": 43, "data": bytes('0xffsafdafda', encoding='utf-8')}]
@@ -52,8 +56,10 @@ def create_diff_schema_cv_mindrecord(files_num):
 
 def create_diff_page_size_cv_mindrecord(files_num):
     """tutorial for cv dataset writer."""
-    os.remove(CV1_FILE_NAME) if os.path.exists(CV1_FILE_NAME) else None
-    os.remove("{}.db".format(CV1_FILE_NAME)) if os.path.exists("{}.db".format(CV1_FILE_NAME)) else None
+    if os.path.exists(CV1_FILE_NAME):
+        os.remove(CV1_FILE_NAME)
+    if os.path.exists("{}.db".format(CV1_FILE_NAME)):
+        os.remove("{}.db".format(CV1_FILE_NAME))
     writer = FileWriter(CV1_FILE_NAME, files_num)
     writer.set_page_size(1 << 26)  # 64MB
     cv_schema_json = {"file_name": {"type": "string"}, "label": {"type": "int32"}, "data": {"type": "bytes"}}
@@ -69,8 +75,8 @@ def test_cv_lack_json():
     create_cv_mindrecord(1)
     columns_list = ["data", "file_name", "label"]
     num_readers = 4
-    with pytest.raises(Exception) as err:
-        data_set = ds.MindDataset(CV_FILE_NAME, "no_exist.json", columns_list, num_readers)
+    with pytest.raises(Exception):
+        ds.MindDataset(CV_FILE_NAME, "no_exist.json", columns_list, num_readers)
     os.remove(CV_FILE_NAME)
     os.remove("{}.db".format(CV_FILE_NAME))
 
@@ -80,7 +86,7 @@ def test_cv_lack_mindrecord():
     columns_list = ["data", "file_name", "label"]
     num_readers = 4
     with pytest.raises(Exception, match="does not exist or permission denied"):
-        data_set = ds.MindDataset("no_exist.mindrecord", columns_list, num_readers)
+        _ = ds.MindDataset("no_exist.mindrecord", columns_list, num_readers)
 
 
 def test_invalid_mindrecord():
@@ -134,7 +140,7 @@ def test_cv_minddataset_pk_sample_exclusive_shuffle():
         data_set = ds.MindDataset(CV_FILE_NAME, columns_list, num_readers,
                                   sampler=sampler, shuffle=False)
         num_iter = 0
-        for item in data_set.create_dict_iterator():
+        for _ in data_set.create_dict_iterator():
             num_iter += 1
     os.remove(CV_FILE_NAME)
     os.remove("{}.db".format(CV_FILE_NAME))
@@ -149,7 +155,7 @@ def test_cv_minddataset_reader_different_schema():
         data_set = ds.MindDataset([CV_FILE_NAME, CV1_FILE_NAME], columns_list,
                                   num_readers)
         num_iter = 0
-        for item in data_set.create_dict_iterator():
+        for _ in data_set.create_dict_iterator():
             num_iter += 1
     os.remove(CV_FILE_NAME)
     os.remove("{}.db".format(CV_FILE_NAME))
@@ -166,7 +172,7 @@ def test_cv_minddataset_reader_different_page_size():
         data_set = ds.MindDataset([CV_FILE_NAME, CV1_FILE_NAME], columns_list,
                                   num_readers)
         num_iter = 0
-        for item in data_set.create_dict_iterator():
+        for _ in data_set.create_dict_iterator():
             num_iter += 1
     os.remove(CV_FILE_NAME)
     os.remove("{}.db".format(CV_FILE_NAME))
@@ -181,7 +187,7 @@ def test_minddataset_invalidate_num_shards():
     with pytest.raises(Exception, match="shard_id is invalid, "):
         data_set = ds.MindDataset(CV_FILE_NAME, columns_list, num_readers, True, 0, 1)
         num_iter = 0
-        for item in data_set.create_dict_iterator():
+        for _ in data_set.create_dict_iterator():
             num_iter += 1
     os.remove(CV_FILE_NAME)
     os.remove("{}.db".format(CV_FILE_NAME))
@@ -194,7 +200,7 @@ def test_minddataset_invalidate_shard_id():
     with pytest.raises(Exception, match="shard_id is invalid, "):
         data_set = ds.MindDataset(CV_FILE_NAME, columns_list, num_readers, True, 1, -1)
         num_iter = 0
-        for item in data_set.create_dict_iterator():
+        for _ in data_set.create_dict_iterator():
             num_iter += 1
     os.remove(CV_FILE_NAME)
     os.remove("{}.db".format(CV_FILE_NAME))
@@ -207,13 +213,13 @@ def test_minddataset_shard_id_bigger_than_num_shard():
     with pytest.raises(Exception, match="shard_id is invalid, "):
         data_set = ds.MindDataset(CV_FILE_NAME, columns_list, num_readers, True, 2, 2)
         num_iter = 0
-        for item in data_set.create_dict_iterator():
+        for _ in data_set.create_dict_iterator():
             num_iter += 1
 
     with pytest.raises(Exception, match="shard_id is invalid, "):
         data_set = ds.MindDataset(CV_FILE_NAME, columns_list, num_readers, True, 2, 5)
         num_iter = 0
-        for item in data_set.create_dict_iterator():
+        for _ in data_set.create_dict_iterator():
             num_iter += 1
 
     os.remove(CV_FILE_NAME)

tests/ut/python/dataset/test_minddataset_multi_images_and_ndarray.py

@@ -50,7 +50,7 @@ def test_cv_minddataset_reader_multi_image_and_ndarray_tutorial():
     assert os.path.exists(CV_FILE_NAME)
     assert os.path.exists(CV_FILE_NAME + ".db")
 
-    """tutorial for minderdataset."""
+    # tutorial for minderdataset.
     columns_list = ["id", "image_0", "image_2", "image_3", "image_4", "input_mask", "segments"]
     num_readers = 1
     data_set = ds.MindDataset(CV_FILE_NAME, columns_list, num_readers)

tests/ut/python/dataset/test_minddataset_sampler.py

@@ -20,7 +20,6 @@ import pytest
 
 import mindspore.dataset as ds
 from mindspore import log as logger
-from mindspore.dataset.transforms.vision import Inter
 from mindspore.dataset.text import to_str
 from mindspore.mindrecord import FileWriter
 

tests/ut/python/dataset/test_nlp.py

@@ -39,7 +39,7 @@ def test_on_tokenized_line():
     res = np.array([[10, 1, 11, 1, 12, 1, 15, 1, 13, 1, 14],
                     [11, 1, 12, 1, 10, 1, 14, 1, 13, 1, 15]], dtype=np.int32)
     for i, d in enumerate(data.create_dict_iterator()):
-        np.testing.assert_array_equal(d["text"], res[i]), i
+        _ = (np.testing.assert_array_equal(d["text"], res[i]), i)
 
 
 if __name__ == '__main__':

tests/ut/python/dataset/test_nlp_jieop.py

@@ -199,7 +199,7 @@ def test_jieba_5():
 
 def gen():
     text = np.array("今天天气太好了我们一起去外面玩吧".encode("UTF8"), dtype='S')
-    yield text,
+    yield (text,)
 
 
 def pytoken_op(input_data):

tests/ut/python/dataset/test_normalizeOp.py

@@ -109,10 +109,9 @@ def test_decode_op():
     data1 = data1.map(input_columns=["image"], operations=decode_op)
 
     num_iter = 0
-    image = None
     for item in data1.create_dict_iterator():
         logger.info("Looping inside iterator {}".format(num_iter))
-        image = item["image"]
+        _ = item["image"]
         # plt.subplot(131)
         # plt.imshow(image)
         # plt.title("DE image")
@@ -134,10 +133,9 @@ def test_decode_normalize_op():
     data1 = data1.map(input_columns=["image"], operations=[decode_op, normalize_op])
 
     num_iter = 0
-    image = None
     for item in data1.create_dict_iterator():
         logger.info("Looping inside iterator {}".format(num_iter))
-        image = item["image"]
+        _ = item["image"]
         # plt.subplot(131)
         # plt.imshow(image)
         # plt.title("DE image")

tests/ut/python/dataset/test_opt.py

@@ -37,8 +37,7 @@ def test_case_0():
 
     data1 = data1.batch(2)
 
-    i = 0
-    for item in data1.create_dict_iterator():  # each data is a dictionary
+    for _ in data1.create_dict_iterator():  # each data is a dictionary
         pass
 
 

tests/ut/python/dataset/test_pad.py

@@ -72,7 +72,7 @@ def test_pad_op():
 # pylint: disable=unnecessary-lambda
 def test_pad_grayscale():
     """
-    Tests that the pad works for grayscale images 
+    Tests that the pad works for grayscale images
     """
 
     def channel_swap(image):
@@ -92,7 +92,7 @@ def test_pad_grayscale():
     data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
     data1 = data1.map(input_columns=["image"], operations=transform())
 
-    # if input is grayscale, the output dimensions should be single channel 
+    # if input is grayscale, the output dimensions should be single channel
     pad_gray = c_vision.Pad(100, fill_value=(20, 20, 20))
     data1 = data1.map(input_columns=["image"], operations=pad_gray)
     dataset_shape_1 = []
@@ -100,11 +100,11 @@ def test_pad_grayscale():
         c_image = item1["image"]
         dataset_shape_1.append(c_image.shape)
 
-    # Dataset for comparison 
+    # Dataset for comparison
     data2 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False)
     decode_op = c_vision.Decode()
 
-    # we use the same padding logic 
+    # we use the same padding logic
     ctrans = [decode_op, pad_gray]
     dataset_shape_2 = []
 

tests/ut/python/dataset/test_pad_batch.py

@@ -119,7 +119,7 @@ def batch_padding_performance_3d():
     num_batches = 0
     for _ in data1.create_dict_iterator():
         num_batches += 1
-    res = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
+    _ = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
     # print(res)
 
 
@@ -135,7 +135,7 @@ def batch_padding_performance_1d():
     num_batches = 0
     for _ in data1.create_dict_iterator():
         num_batches += 1
-    res = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
+    _ = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
     # print(res)
 
 
@@ -151,7 +151,7 @@ def batch_pyfunc_padding_3d():
     num_batches = 0
     for _ in data1.create_dict_iterator():
         num_batches += 1
-    res = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
+    _ = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
     # print(res)
 
 
@@ -166,7 +166,7 @@ def batch_pyfunc_padding_1d():
     num_batches = 0
     for _ in data1.create_dict_iterator():
         num_batches += 1
-    res = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
+    _ = "total number of batch:" + str(num_batches) + " time elapsed:" + str(time.time() - start_time)
     # print(res)
 
 

tests/ut/python/dataset/test_random_color.py

@@ -58,7 +58,7 @@ def test_random_color(degrees=(0.1, 1.9), plot=False):
 
     ds_original = ds_original.batch(512)
 
-    for idx, (image, label) in enumerate(ds_original):
+    for idx, (image, _) in enumerate(ds_original):
         if idx == 0:
             images_original = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -79,7 +79,7 @@ def test_random_color(degrees=(0.1, 1.9), plot=False):
 
     ds_random_color = ds_random_color.batch(512)
 
-    for idx, (image, label) in enumerate(ds_random_color):
+    for idx, (image, _) in enumerate(ds_random_color):
         if idx == 0:
             images_random_color = np.transpose(image, (0, 2, 3, 1))
         else:

tests/ut/python/dataset/test_random_color_adjust.py

@@ -256,7 +256,7 @@ def test_random_color_adjust_op_hue(plot=False):
 # pylint: disable=unnecessary-lambda
 def test_random_color_adjust_grayscale():
     """
-    Tests that the random color adjust works for grayscale images 
+    Tests that the random color adjust works for grayscale images
     """
 
     def channel_swap(image):
@@ -284,7 +284,7 @@ def test_random_color_adjust_grayscale():
         for item1 in data1.create_dict_iterator():
             c_image = item1["image"]
             dataset_shape_1.append(c_image.shape)
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 

tests/ut/python/dataset/test_random_crop.py

@@ -200,7 +200,7 @@ def test_random_crop_04_c():
         for item in data.create_dict_iterator():
             image = item["image"]
             image_list.append(image.shape)
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 def test_random_crop_04_py():
@@ -227,7 +227,7 @@ def test_random_crop_04_py():
         for item in data.create_dict_iterator():
             image = (item["image"].transpose(1, 2, 0) * 255).astype(np.uint8)
             image_list.append(image.shape)
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 def test_random_crop_05_c():
@@ -439,7 +439,7 @@ def test_random_crop_09():
         for item in data.create_dict_iterator():
             image = item["image"]
             image_list.append(image.shape)
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "should be PIL Image" in str(e)
 

tests/ut/python/dataset/test_random_resize.py

@@ -60,7 +60,7 @@ def test_random_resize_op():
 
     num_iter = 0
     for item in data1.create_dict_iterator():
-        image_de_resized = item["image"]
+        _ = item["image"]
         # Uncomment below line if you want to visualize images
         # visualize(image_de_resized, image_np_resized, mse)
         num_iter += 1

tests/ut/python/dataset/test_random_sharpness.py

@@ -58,7 +58,7 @@ def test_random_sharpness(degrees=(0.1, 1.9), plot=False):
 
     ds_original = ds_original.batch(512)
 
-    for idx, (image, label) in enumerate(ds_original):
+    for idx, (image, _) in enumerate(ds_original):
         if idx == 0:
             images_original = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -79,7 +79,7 @@ def test_random_sharpness(degrees=(0.1, 1.9), plot=False):
 
     ds_random_sharpness = ds_random_sharpness.batch(512)
 
-    for idx, (image, label) in enumerate(ds_random_sharpness):
+    for idx, (image, _) in enumerate(ds_random_sharpness):
         if idx == 0:
             images_random_sharpness = np.transpose(image, (0, 2, 3, 1))
         else:

tests/ut/python/dataset/test_sampler.py

@@ -25,7 +25,7 @@ from mindspore import log as logger
 
 def test_sequential_sampler(print_res=False):
     manifest_file = "../data/dataset/testManifestData/test5trainimgs.json"
-    map = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
+    map_ = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
 
     def test_config(num_samples, num_repeats=None):
         sampler = ds.SequentialSampler()
@@ -36,7 +36,7 @@ def test_sequential_sampler(print_res=False):
         for item in data1.create_dict_iterator():
             logger.info("item[image].shape[0]: {}, item[label].item(): {}"
                         .format(item["image"].shape[0], item["label"].item()))
-            res.append(map[(item["image"].shape[0], item["label"].item())])
+            res.append(map_[(item["image"].shape[0], item["label"].item())])
         if print_res:
             logger.info("image.shapes and labels: {}".format(res))
         return res
@@ -48,7 +48,7 @@ def test_sequential_sampler(print_res=False):
 
 def test_random_sampler(print_res=False):
     manifest_file = "../data/dataset/testManifestData/test5trainimgs.json"
-    map = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
+    map_ = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
 
     def test_config(replacement, num_samples, num_repeats):
         sampler = ds.RandomSampler(replacement=replacement, num_samples=num_samples)
@@ -56,7 +56,7 @@ def test_random_sampler(print_res=False):
         data1 = data1.repeat(num_repeats)
         res = []
         for item in data1.create_dict_iterator():
-            res.append(map[(item["image"].shape[0], item["label"].item())])
+            res.append(map_[(item["image"].shape[0], item["label"].item())])
         if print_res:
             logger.info("image.shapes and labels: {}".format(res))
         return res
@@ -71,7 +71,7 @@ def test_random_sampler(print_res=False):
 
 def test_random_sampler_multi_iter(print_res=False):
     manifest_file = "../data/dataset/testManifestData/test5trainimgs.json"
-    map = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
+    map_ = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
 
     def test_config(replacement, num_samples, num_repeats, validate):
         sampler = ds.RandomSampler(replacement=replacement, num_samples=num_samples)
@@ -79,7 +79,7 @@ def test_random_sampler_multi_iter(print_res=False):
         while num_repeats > 0:
             res = []
             for item in data1.create_dict_iterator():
-                res.append(map[(item["image"].shape[0], item["label"].item())])
+                res.append(map_[(item["image"].shape[0], item["label"].item())])
             if print_res:
                 logger.info("image.shapes and labels: {}".format(res))
             if validate != sorted(res):
@@ -112,7 +112,7 @@ def test_sampler_py_api():
 
 def test_python_sampler():
     manifest_file = "../data/dataset/testManifestData/test5trainimgs.json"
-    map = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
+    map_ = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
 
     class Sp1(ds.Sampler):
         def __iter__(self):
@@ -138,7 +138,7 @@ def test_python_sampler():
         for item in data1.create_dict_iterator():
             logger.info("item[image].shape[0]: {}, item[label].item(): {}"
                         .format(item["image"].shape[0], item["label"].item()))
-            res.append(map[(item["image"].shape[0], item["label"].item())])
+            res.append(map_[(item["image"].shape[0], item["label"].item())])
         # print(res)
         return res
 
@@ -167,7 +167,7 @@ def test_python_sampler():
 
 def test_subset_sampler():
     manifest_file = "../data/dataset/testManifestData/test5trainimgs.json"
-    map = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
+    map_ = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
 
     def test_config(num_samples, start_index, subset_size):
         sampler = ds.SubsetSampler(start_index, subset_size)
@@ -175,7 +175,7 @@ def test_subset_sampler():
 
         res = []
         for item in d.create_dict_iterator():
-            res.append(map[(item["image"].shape[0], item["label"].item())])
+            res.append(map_[(item["image"].shape[0], item["label"].item())])
 
         return res
 
@@ -196,7 +196,7 @@ def test_subset_sampler():
 
 def test_sampler_chain():
     manifest_file = "../data/dataset/testManifestData/test5trainimgs.json"
-    map = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
+    map_ = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
 
     def test_config(num_shards, shard_id):
         sampler = ds.DistributedSampler(num_shards, shard_id, False)
@@ -209,7 +209,7 @@ def test_sampler_chain():
         for item in data1.create_dict_iterator():
             logger.info("item[image].shape[0]: {}, item[label].item(): {}"
                         .format(item["image"].shape[0], item["label"].item()))
-            res.append(map[(item["image"].shape[0], item["label"].item())])
+            res.append(map_[(item["image"].shape[0], item["label"].item())])
         return res
 
     assert test_config(2, 0) == [0, 2, 4]
@@ -222,7 +222,7 @@ def test_sampler_chain():
 
 def test_add_sampler_invalid_input():
     manifest_file = "../data/dataset/testManifestData/test5trainimgs.json"
-    map = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
+    _ = {(172876, 0): 0, (54214, 0): 1, (54214, 1): 2, (173673, 0): 3, (64631, 1): 4}
     data1 = ds.ManifestDataset(manifest_file)
 
     with pytest.raises(TypeError) as info:

tests/ut/python/dataset/test_serdes_dataset.py

@@ -18,9 +18,8 @@ Testing dataset serialize and deserialize in DE
 import filecmp
 import glob
 import json
-import numpy as np
 import os
-import pytest
+import numpy as np
 
 import mindspore.dataset as ds
 import mindspore.dataset.transforms.c_transforms as c
@@ -28,6 +27,8 @@ import mindspore.dataset.transforms.vision.c_transforms as vision
 from mindspore import log as logger
 from mindspore.dataset.transforms.vision import Inter
 
+from test_minddataset_sampler import add_and_remove_cv_file, get_data, CV_DIR_NAME, CV_FILE_NAME
+
 
 def test_imagefolder(remove_json_files=True):
     """
@@ -186,7 +187,7 @@ def test_random_crop():
     # Serializing into python dictionary
     ds1_dict = ds.serialize(data1)
     # Serializing into json object
-    ds1_json = json.dumps(ds1_dict, indent=2)
+    _ = json.dumps(ds1_dict, indent=2)
 
     # Reconstruct dataset pipeline from its serialized form
     data1_1 = ds.deserialize(input_dict=ds1_dict)
@@ -198,7 +199,7 @@ def test_random_crop():
     for item1, item1_1, item2 in zip(data1.create_dict_iterator(), data1_1.create_dict_iterator(),
                                      data2.create_dict_iterator()):
         assert np.array_equal(item1['image'], item1_1['image'])
-        image2 = item2["image"]
+        _ = item2["image"]
 
 
 def validate_jsonfile(filepath):
@@ -221,10 +222,6 @@ def delete_json_files():
 
 
 # Test save load minddataset
-from test_minddataset_sampler import add_and_remove_cv_file, get_data, CV_DIR_NAME, CV_FILE_NAME, FILES_NUM, \
-    FileWriter, Inter
-
-
 def test_minddataset(add_and_remove_cv_file):
     """tutorial for cv minderdataset."""
     columns_list = ["data", "file_name", "label"]
@@ -247,7 +244,7 @@ def test_minddataset(add_and_remove_cv_file):
 
     assert ds1_json == ds2_json
 
-    data = get_data(CV_DIR_NAME)
+    _ = get_data(CV_DIR_NAME)
     assert data_set.get_dataset_size() == 5
     num_iter = 0
     for _ in data_set.create_dict_iterator():

tests/ut/python/dataset/test_shuffle.py

@@ -152,7 +152,7 @@ def test_shuffle_exception_01():
         data1 = data1.shuffle(buffer_size=-1)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "buffer_size" in str(e)
 
@@ -170,7 +170,7 @@ def test_shuffle_exception_02():
         data1 = data1.shuffle(buffer_size=0)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "buffer_size" in str(e)
 
@@ -188,7 +188,7 @@ def test_shuffle_exception_03():
         data1 = data1.shuffle(buffer_size=1)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "buffer_size" in str(e)
 
@@ -206,7 +206,7 @@ def test_shuffle_exception_05():
         data1 = data1.shuffle()
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "buffer_size" in str(e)
 
@@ -224,7 +224,7 @@ def test_shuffle_exception_06():
         data1 = data1.shuffle(buffer_size=False)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "buffer_size" in str(e)
 
@@ -242,7 +242,7 @@ def test_shuffle_exception_07():
         data1 = data1.shuffle(buffer_size=True)
         sum([1 for _ in data1])
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "buffer_size" in str(e)
 

tests/ut/python/dataset/test_skip.py

@@ -70,7 +70,6 @@ def test_skip_1():
     buf = []
     for data in ds1:
         buf.append(data[0][0])
-    assert len(buf) == 0
     assert buf == []
 
 

tests/ut/python/dataset/test_split.py

@@ -29,47 +29,47 @@ text_file_data = ["This is a text file.", "Another file.", "Be happy every day."
 
 def split_with_invalid_inputs(d):
     with pytest.raises(ValueError) as info:
-        s1, s2 = d.split([])
+        _, _ = d.split([])
     assert "sizes cannot be empty" in str(info.value)
 
     with pytest.raises(ValueError) as info:
-        s1, s2 = d.split([5, 0.6])
+        _, _ = d.split([5, 0.6])
     assert "sizes should be list of int or list of float" in str(info.value)
 
     with pytest.raises(ValueError) as info:
-        s1, s2 = d.split([-1, 6])
+        _, _ = d.split([-1, 6])
     assert "there should be no negative numbers" in str(info.value)
 
     with pytest.raises(RuntimeError) as info:
-        s1, s2 = d.split([3, 1])
+        _, _ = d.split([3, 1])
     assert "sum of split sizes 4 is not equal to dataset size 5" in str(info.value)
 
     with pytest.raises(RuntimeError) as info:
-        s1, s2 = d.split([5, 1])
+        _, _ = d.split([5, 1])
     assert "sum of split sizes 6 is not equal to dataset size 5" in str(info.value)
 
     with pytest.raises(RuntimeError) as info:
-        s1, s2 = d.split([0.15, 0.15, 0.15, 0.15, 0.15, 0.25])
+        _, _ = d.split([0.15, 0.15, 0.15, 0.15, 0.15, 0.25])
     assert "sum of calculated split sizes 6 is not equal to dataset size 5" in str(info.value)
 
     with pytest.raises(ValueError) as info:
-        s1, s2 = d.split([-0.5, 0.5])
+        _, _ = d.split([-0.5, 0.5])
     assert "there should be no numbers outside the range [0, 1]" in str(info.value)
 
     with pytest.raises(ValueError) as info:
-        s1, s2 = d.split([1.5, 0.5])
+        _, _ = d.split([1.5, 0.5])
     assert "there should be no numbers outside the range [0, 1]" in str(info.value)
 
     with pytest.raises(ValueError) as info:
-        s1, s2 = d.split([0.5, 0.6])
+        _, _ = d.split([0.5, 0.6])
     assert "percentages do not sum up to 1" in str(info.value)
 
     with pytest.raises(ValueError) as info:
-        s1, s2 = d.split([0.3, 0.6])
+        _, _ = d.split([0.3, 0.6])
     assert "percentages do not sum up to 1" in str(info.value)
 
     with pytest.raises(RuntimeError) as info:
-        s1, s2 = d.split([0.05, 0.95])
+        _, _ = d.split([0.05, 0.95])
     assert "percentage 0.05 is too small" in str(info.value)
 
 
@@ -79,7 +79,7 @@ def test_unmappable_invalid_input():
 
     d = ds.TextFileDataset(text_file_dataset_path, num_shards=2, shard_id=0)
     with pytest.raises(RuntimeError) as info:
-        s1, s2 = d.split([4, 1])
+        _, _ = d.split([4, 1])
     assert "dataset should not be sharded before split" in str(info.value)
 
 
@@ -273,7 +273,7 @@ def test_mappable_invalid_input():
 
     d = ds.ManifestDataset(manifest_file, num_shards=2, shard_id=0)
     with pytest.raises(RuntimeError) as info:
-        s1, s2 = d.split([4, 1])
+        _, _ = d.split([4, 1])
     assert "dataset should not be sharded before split" in str(info.value)
 
 

tests/ut/python/dataset/test_sync_wait.py

@@ -28,8 +28,8 @@ class Augment:
     def __init__(self, loss):
         self.loss = loss
 
-    def preprocess(self, input):
-        return input
+    def preprocess(self, input_):
+        return input_
 
     def update(self, data):
         self.loss = data["loss"]
@@ -143,7 +143,7 @@ def test_multiple_iterators():
     dataset = dataset.sync_wait(condition_name="policy", callback=aug.update)
     dataset = dataset.map(input_columns=["input"], operations=[aug.preprocess])
     dataset = dataset.batch(batch_size, drop_remainder=True)
-    # 2nd dataset 
+    # 2nd dataset
     dataset2 = ds.GeneratorDataset(gen, column_names=["input"])
 
     aug = Augment(0)
@@ -175,7 +175,7 @@ def test_sync_exception_01():
 
     try:
         dataset = dataset.shuffle(shuffle_size)
-    except BaseException as e:
+    except Exception as e:
         assert "shuffle" in str(e)
     dataset = dataset.batch(batch_size)
 
@@ -197,7 +197,7 @@ def test_sync_exception_02():
 
     try:
         dataset = dataset.sync_wait(num_batch=2, condition_name="every batch")
-    except BaseException as e:
+    except Exception as e:
         assert "name" in str(e)
     dataset = dataset.batch(batch_size)
 

tests/ut/python/dataset/test_take.py

@@ -46,7 +46,7 @@ def test_take_01():
     data1 = data1.take(1)
     data1 = data1.repeat(2)
 
-    # Here i refers to index, d refers to data element 
+    # Here i refers to index, d refers to data element
     for _, d in enumerate(data1):
         assert d[0][0] == 0
 
@@ -63,7 +63,7 @@ def test_take_02():
     data1 = data1.take(2)
     data1 = data1.repeat(2)
 
-    # Here i refers to index, d refers to data element 
+    # Here i refers to index, d refers to data element
     for i, d in enumerate(data1):
         assert i % 2 == d[0][0]
 
@@ -80,7 +80,7 @@ def test_take_03():
     data1 = data1.take(3)
     data1 = data1.repeat(2)
 
-    # Here i refers to index, d refers to data element 
+    # Here i refers to index, d refers to data elements
     for i, d in enumerate(data1):
         assert i % 3 == d[0][0]
 

tests/ut/python/dataset/test_tensor_string.py

@@ -12,15 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ==============================================================================
-import mindspore._c_dataengine as cde
-import numpy as np
 import pytest
-
-from mindspore.dataset.text import to_str, to_bytes
+import numpy as np
 
 import mindspore.dataset as ds
+import mindspore._c_dataengine as cde
 import mindspore.common.dtype as mstype
-
+from mindspore.dataset.text import to_str
 
 # pylint: disable=comparison-with-itself
 def test_basic():
@@ -34,7 +32,7 @@ def compare(strings):
     arr = np.array(strings, dtype='S')
 
     def gen():
-        yield arr,
+        (yield arr,)
 
     data = ds.GeneratorDataset(gen, column_names=["col"])
 
@@ -50,7 +48,7 @@ def test_generator():
 
 def test_batching_strings():
     def gen():
-        yield np.array(["ab", "cde", "121"], dtype='S'),
+        yield (np.array(["ab", "cde", "121"], dtype='S'),)
 
     data = ds.GeneratorDataset(gen, column_names=["col"]).batch(10)
 
@@ -62,7 +60,7 @@ def test_batching_strings():
 
 def test_map():
     def gen():
-        yield np.array(["ab cde 121"], dtype='S'),
+        yield (np.array(["ab cde 121"], dtype='S'),)
 
     data = ds.GeneratorDataset(gen, column_names=["col"])
 
@@ -79,7 +77,7 @@ def test_map():
 
 def test_map2():
     def gen():
-        yield np.array(["ab cde 121"], dtype='S'),
+        yield (np.array(["ab cde 121"], dtype='S'),)
 
     data = ds.GeneratorDataset(gen, column_names=["col"])
 

tests/ut/python/dataset/test_tfreader_op.py

@@ -215,7 +215,7 @@ def test_case_tf_file_no_schema_columns_list():
     assert row["col_sint16"] == [-32768]
 
     with pytest.raises(KeyError) as info:
-        a = row["col_sint32"]
+        _ = row["col_sint32"]
     assert "col_sint32" in str(info.value)
 
 
@@ -234,7 +234,7 @@ def test_tf_record_schema_columns_list():
     assert row["col_sint16"] == [-32768]
 
     with pytest.raises(KeyError) as info:
-        a = row["col_sint32"]
+        _ = row["col_sint32"]
     assert "col_sint32" in str(info.value)
 
 
@@ -246,7 +246,7 @@ def test_case_invalid_files():
     data = ds.TFRecordDataset(files, SCHEMA_FILE, shuffle=ds.Shuffle.FILES)
 
     with pytest.raises(RuntimeError) as info:
-        row = data.create_dict_iterator().get_next()
+        _ = data.create_dict_iterator().get_next()
     assert "cannot be opened" in str(info.value)
     assert "not valid tfrecord files" in str(info.value)
     assert valid_file not in str(info.value)

tests/ut/python/dataset/test_to_type.py

@@ -123,7 +123,7 @@ def test_to_type_03():
         ]
         transform = py_vision.ComposeOp(transforms)
         data = data.map(input_columns=["image"], operations=transform())
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "Numpy" in str(e)
 
@@ -145,7 +145,7 @@ def test_to_type_04():
         ]
         transform = py_vision.ComposeOp(transforms)
         data = data.map(input_columns=["image"], operations=transform())
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "missing" in str(e)
 
@@ -167,7 +167,7 @@ def test_to_type_05():
         ]
         transform = py_vision.ComposeOp(transforms)
         data = data.map(input_columns=["image"], operations=transform())
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "data type" in str(e)
 

tests/ut/python/dataset/test_uniform_augment.py

@@ -59,7 +59,7 @@ def test_uniform_augment(plot=False, num_ops=2):
 
     ds_original = ds_original.batch(512)
 
-    for idx, (image, label) in enumerate(ds_original):
+    for idx, (image, _) in enumerate(ds_original):
         if idx == 0:
             images_original = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -87,7 +87,7 @@ def test_uniform_augment(plot=False, num_ops=2):
 
     ds_ua = ds_ua.batch(512)
 
-    for idx, (image, label) in enumerate(ds_ua):
+    for idx, (image, _) in enumerate(ds_ua):
         if idx == 0:
             images_ua = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -122,7 +122,7 @@ def test_cpp_uniform_augment(plot=False, num_ops=2):
 
     ds_original = ds_original.batch(512)
 
-    for idx, (image, label) in enumerate(ds_original):
+    for idx, (image, _) in enumerate(ds_original):
         if idx == 0:
             images_original = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -149,7 +149,7 @@ def test_cpp_uniform_augment(plot=False, num_ops=2):
 
     ds_ua = ds_ua.batch(512)
 
-    for idx, (image, label) in enumerate(ds_ua):
+    for idx, (image, _) in enumerate(ds_ua):
         if idx == 0:
             images_ua = np.transpose(image, (0, 2, 3, 1))
         else:
@@ -180,9 +180,9 @@ def test_cpp_uniform_augment_exception_pyops(num_ops=2):
                      F.Invert()]
 
     try:
-        uni_aug = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
+        _ = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "operations" in str(e)
 
@@ -200,9 +200,9 @@ def test_cpp_uniform_augment_exception_large_numops(num_ops=6):
                      C.RandomRotation(degrees=45)]
 
     try:
-        uni_aug = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
+        _ = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "num_ops" in str(e)
 
@@ -220,9 +220,9 @@ def test_cpp_uniform_augment_exception_nonpositive_numops(num_ops=0):
                      C.RandomRotation(degrees=45)]
 
     try:
-        uni_aug = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
+        _ = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "num_ops" in str(e)
 
@@ -239,9 +239,9 @@ def test_cpp_uniform_augment_exception_float_numops(num_ops=2.5):
                      C.RandomRotation(degrees=45)]
 
     try:
-        uni_aug = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
+        _ = C.UniformAugment(operations=transforms_ua, num_ops=num_ops)
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
         assert "integer" in str(e)
 
@@ -250,7 +250,7 @@ def test_cpp_uniform_augment_random_crop_badinput(num_ops=1):
     Test UniformAugment with greater crop size
     """
     logger.info("Test CPP UniformAugment with random_crop bad input")
-    batch_size=2
+    batch_size = 2
     cifar10_dir = "../data/dataset/testCifar10Data"
     ds1 = de.Cifar10Dataset(cifar10_dir, shuffle=False)  # shape = [32,32,3]
 
@@ -266,9 +266,9 @@ def test_cpp_uniform_augment_random_crop_badinput(num_ops=1):
     ds1 = ds1.batch(batch_size, drop_remainder=True, num_parallel_workers=1)
     num_batches = 0
     try:
-        for data in ds1.create_dict_iterator():
+        for _ in ds1.create_dict_iterator():
             num_batches += 1
-    except BaseException as e:
+    except Exception as e:
         assert "Crop size" in str(e)
 
 

tests/ut/python/dataset/test_var_batch_map.py

@@ -75,6 +75,7 @@ def test_variable_size_batch():
         return batchInfo.get_epoch_num() + 1
 
     def simple_copy(colList, batchInfo):
+        _ = batchInfo
         return ([np.copy(arr) for arr in colList],)
 
     def test_repeat_batch(gen_num, r, drop, func, res):
@@ -186,6 +187,7 @@ def test_batch_multi_col_map():
             yield (np.array([i]), np.array([i ** 2]))
 
     def col1_col2_add_num(col1, col2, batchInfo):
+        _ = batchInfo
         return ([[np.copy(arr + 100) for arr in col1],
                  [np.copy(arr + 300) for arr in col2]])
 
@@ -287,11 +289,11 @@ def test_exception():
 
     def bad_batch_size(batchInfo):
         raise StopIteration
-        return batchInfo.get_batch_num()
+        #return batchInfo.get_batch_num()
 
     def bad_map_func(col, batchInfo):
         raise StopIteration
-        return (col,)
+        #return (col,)
 
     data1 = ds.GeneratorDataset((lambda: gen(100)), ["num"]).batch(bad_batch_size)
     try:

tests/ut/python/dataset/test_zip.py

@@ -143,7 +143,7 @@ def test_zip_exception_01():
             num_iter += 1
         logger.info("Number of data in zipped dataz: {}".format(num_iter))
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 
@@ -164,7 +164,7 @@ def test_zip_exception_02():
             num_iter += 1
         logger.info("Number of data in zipped dataz: {}".format(num_iter))
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 
@@ -185,7 +185,7 @@ def test_zip_exception_03():
             num_iter += 1
         logger.info("Number of data in zipped dataz: {}".format(num_iter))
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 
@@ -205,7 +205,7 @@ def test_zip_exception_04():
             num_iter += 1
         logger.info("Number of data in zipped dataz: {}".format(num_iter))
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 
@@ -226,7 +226,7 @@ def test_zip_exception_05():
             num_iter += 1
         logger.info("Number of data in zipped dataz: {}".format(num_iter))
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 
@@ -246,7 +246,7 @@ def test_zip_exception_06():
             num_iter += 1
         logger.info("Number of data in zipped dataz: {}".format(num_iter))
 
-    except BaseException as e:
+    except Exception as e:
         logger.info("Got an exception in DE: {}".format(str(e)))
 
 

tests/ut/python/mindrecord/test_mindrecord_exception.py

@@ -300,16 +300,16 @@ def test_mindpage_pageno_pagesize_not_int(fixture_cv_file):
     info = reader.read_category_info()
     logger.info("category info: {}".format(info))
 
-    with pytest.raises(ParamValueError) as err:
+    with pytest.raises(ParamValueError):
         reader.read_at_page_by_id(0, "0", 1)
 
-    with pytest.raises(ParamValueError) as err:
+    with pytest.raises(ParamValueError):
         reader.read_at_page_by_id(0, 0, "b")
 
-    with pytest.raises(ParamValueError) as err:
+    with pytest.raises(ParamValueError):
         reader.read_at_page_by_name("822", "e", 1)
 
-    with pytest.raises(ParamValueError) as err:
+    with pytest.raises(ParamValueError):
         reader.read_at_page_by_name("822", 0, "qwer")
 
     with pytest.raises(MRMFetchDataError, match="Failed to fetch data by category."):
@@ -330,14 +330,14 @@ def test_mindpage_filename_not_exist(fixture_cv_file):
     info = reader.read_category_info()
     logger.info("category info: {}".format(info))
 
-    with pytest.raises(MRMFetchDataError) as err:
+    with pytest.raises(MRMFetchDataError):
         reader.read_at_page_by_id(9999, 0, 1)
 
-    with pytest.raises(MRMFetchDataError) as err:
+    with pytest.raises(MRMFetchDataError):
         reader.read_at_page_by_name("abc.jpg", 0, 1)
 
-    with pytest.raises(ParamValueError) as err:
+    with pytest.raises(ParamValueError):
         reader.read_at_page_by_name(1, 0, 1)
 
-    paths = ["{}{}".format(CV_FILE_NAME, str(x).rjust(1, '0'))
-             for x in range(FILES_NUM)]
+    _ = ["{}{}".format(CV_FILE_NAME, str(x).rjust(1, '0'))
+         for x in range(FILES_NUM)]

tests/ut/python/mindrecord/test_mnist_to_mr.py

@@ -14,10 +14,9 @@
 """test mnist to mindrecord tool"""
 import gzip
 import os
+import pytest
 import numpy as np
-
 import cv2
-import pytest
 
 from mindspore import log as logger
 from mindspore.mindrecord import FileReader

tests/ut/python/mindrecord/utils.py

@@ -14,12 +14,12 @@
 # ============================================================================
 """utils for test"""
 
-import collections
-import json
-import numpy as np
 import os
 import re
 import string
+import collections
+import json
+import numpy as np
 
 from mindspore import log as logger
 
@@ -185,7 +185,7 @@ def get_nlp_data(dir_name, vocab_file, num):
     """
     if not os.path.isdir(dir_name):
         raise IOError("Directory {} not exists".format(dir_name))
-    for root, dirs, files in os.walk(dir_name):
+    for root, _, files in os.walk(dir_name):
         for index, file_name_extension in enumerate(files):
             if index < num:
                 file_path = os.path.join(root, file_name_extension)