!10772 Prevent the multiprocess.pool from capturing KeyboardInterrupt,

From: @ouwenchang
Reviewed-by: @wenkai_dist,@wangyue01
Signed-off-by: @wangyue01

mindspore/train/_utils.py

@@ -202,7 +202,7 @@ def check_value_type(arg_name, arg_value, valid_types):
 
     if not is_valid:
         raise TypeError(f'For `{arg_name}` the type should be a valid type of {[t.__name__ for t in valid_types]}, '
-                        f'bug got {type(arg_value).__name__}.')
+                        f'but got {type(arg_value).__name__}.')
 
 
 def read_proto(file_name, proto_format="MINDIR"):

mindspore/train/summary/_writer_pool.py

@@ -15,6 +15,7 @@
 """Write events to disk in a base directory."""
 import os
 import time
+import signal
 from collections import deque
 
 import mindspore.log as logger
@@ -77,6 +78,10 @@ class WriterPool(ctx.Process):
         os.environ['GOTO_NUM_THREADS'] = '2'
         os.environ['OMP_NUM_THREADS'] = '2'
 
+        # Prevent the multiprocess from capturing KeyboardInterrupt,
+        # which causes the main process to fail to exit.
+        signal.signal(signal.SIGINT, signal.SIG_IGN)
+
         with ctx.Pool(min(ctx.cpu_count(), 32)) as pool:
             deq = deque()
             while True:

tests/ut/python/train/summary/test_summary_collector.py

@@ -118,7 +118,7 @@ class TestSummaryCollector:
             with pytest.raises(TypeError) as exc:
                 SummaryCollector(summary_dir=summary_dir, collect_freq=collect_freq)
             expected_msg = f"For `collect_freq` the type should be a valid type of ['int'], " \
-                           f'bug got {type(collect_freq).__name__}.'
+                           f'but got {type(collect_freq).__name__}.'
             assert expected_msg == str(exc.value)
 
     @pytest.mark.parametrize("action", [None, 123, '', '123'])
@@ -128,7 +128,7 @@ class TestSummaryCollector:
         with pytest.raises(TypeError) as exc:
             SummaryCollector(summary_dir=summary_dir, keep_default_action=action)
         expected_msg = f"For `keep_default_action` the type should be a valid type of ['bool'], " \
-                       f"bug got {type(action).__name__}."
+                       f"but got {type(action).__name__}."
         assert expected_msg == str(exc.value)
 
     @pytest.mark.parametrize("collect_specified_data", [123])
@@ -139,7 +139,7 @@ class TestSummaryCollector:
             SummaryCollector(summary_dir, collect_specified_data=collect_specified_data)
 
         expected_msg = f"For `collect_specified_data` the type should be a valid type of ['dict', 'NoneType'], " \
-                       f"bug got {type(collect_specified_data).__name__}."
+                       f"but got {type(collect_specified_data).__name__}."
 
         assert expected_msg == str(exc.value)
 
@@ -159,7 +159,7 @@ class TestSummaryCollector:
 
         param_name = list(collect_specified_data)[0]
         expected_msg = f"For `{param_name}` the type should be a valid type of ['str'], " \
-                       f"bug got {type(param_name).__name__}."
+                       f"but got {type(param_name).__name__}."
         assert expected_msg == str(exc.value)
 
     @pytest.mark.parametrize("collect_specified_data", [
@@ -183,7 +183,7 @@ class TestSummaryCollector:
         param_value = collect_specified_data[param_name]
         expected_type = "['bool']" if param_name != 'histogram_regular' else "['str', 'NoneType']"
         expected_msg = f'For `{param_name}` the type should be a valid type of {expected_type}, ' \
-                       f'bug got {type(param_value).__name__}.'
+                       f'but got {type(param_value).__name__}.'
 
         assert expected_msg == str(exc.value)
 
@@ -216,18 +216,18 @@ class TestSummaryCollector:
 
         if not isinstance(custom_lineage_data, dict):
             expected_msg = f"For `custom_lineage_data` the type should be a valid type of ['dict', 'NoneType'], " \
-                           f"bug got {type(custom_lineage_data).__name__}."
+                           f"but got {type(custom_lineage_data).__name__}."
         else:
             param_name = list(custom_lineage_data)[0]
             param_value = custom_lineage_data[param_name]
             if not isinstance(param_name, str):
                 arg_name = f'custom_lineage_data -> {param_name}'
                 expected_msg = f"For `{arg_name}` the type should be a valid type of ['str'], " \
-                               f'bug got {type(param_name).__name__}.'
+                               f'but got {type(param_name).__name__}.'
             else:
                 arg_name = f'the value of custom_lineage_data -> {param_name}'
                 expected_msg = f"For `{arg_name}` the type should be a valid type of ['int', 'str', 'float'], " \
-                               f'bug got {type(param_value).__name__}.'
+                               f'but got {type(param_value).__name__}.'
 
         assert expected_msg == str(exc.value)