fix bug which ignores the sample when sample_id==0

mindinsight/explainer/manager/explain_loader.py

@@ -432,7 +432,7 @@ class ExplainLoader:
                     ...
                 }
         """
-        if not getattr(sample, 'sample_id', None):
+        if getattr(sample, 'sample_id', None) is None:
             raise ParamValueError('sample_event has no sample_id')
         sample_id = sample.sample_id
         samples_copy = self._samples.copy()

mindinsight/explainer/manager/explain_parser.py

@@ -141,7 +141,7 @@ class ExplainParser(_SummaryParser):
         field_list = []
         tensor_value_list = []
         for field in fields:
-            if not getattr(tensor_event_value, field, False):
+            if getattr(tensor_event_value, field, None) is None:
                 continue
 
             if ExplainFieldsEnum.METADATA.value == field and not tensor_event_value.metadata.label: