diff --git a/schema/check_generated_data.py b/schema/check_generated_data.py
index 10706230..1354c002 100644
--- a/schema/check_generated_data.py
+++ b/schema/check_generated_data.py
@@ -35,7 +35,6 @@ def main(args):
     if os.path.exists(test_data_path):
         check_path = os.path.join(test_data_path, 'icu*')
         icu_dirs = glob.glob(check_path)
-        logging.debug('ICU DIRECTORIES = %s', icu_dirs)
         for dir_name in icu_dirs:
             icu_versions.append(os.path.basename(dir_name))
 
diff --git a/schema/check_schemas.py b/schema/check_schemas.py
index 96b017fd..60770223 100644
--- a/schema/check_schemas.py
+++ b/schema/check_schemas.py
@@ -26,7 +26,6 @@ def save_schema_validation_summary(self, validation_status):
         failed_validations = []
         passed_validations = []
         for result in validation_status:
-            logging.debug(result)
             if result['result']:
                 passed_validations.append(result)
             else:
diff --git a/schema/check_test_output.py b/schema/check_test_output.py
index 532099ca..b76d768f 100644
--- a/schema/check_test_output.py
+++ b/schema/check_test_output.py
@@ -91,7 +91,6 @@ def main(args):
     passed_validations = []
     schema_count = len(all_results)
     for result in all_results:
-        logging.debug(result)
         if result['result']:
             passed_validations.append(result)
         else:
diff --git a/schema/schema_validator.py b/schema/schema_validator.py
index c90405bc..461fa475 100644
--- a/schema/schema_validator.py
+++ b/schema/schema_validator.py
@@ -105,7 +105,7 @@ def validate_json_file(self, schema_and_data_paths):
             validate(data_to_check, schema)
             # Everything worked!
             result_data['result'] = True
-        except ValidationError as err:
+        except exceptions.ValidationError as err:
             result_data['result'] = False
             result_data['error'] = err
             logging.error('ValidationError for test output %s and schema %s',
@@ -154,7 +154,6 @@ def validate_test_data_with_schema(self):
         results = self.parallel_check_test_data_schema(schema_test_info)
 
         for result_data in results:
-            logging.debug('test result data = %s', result_data)
             if not result_data['data_file_name']:
                 # This is not an error but simply a test that wasn't run.
                 continue
@@ -192,7 +191,6 @@ def get_schema_data_info(self, icu_version, test_type):
                 'test_result_file': test_file_name
             }
         else:
-            # logging.warning('## get_schema_data_info. No file at test_file_name: %s', test_file_name);
             return None
 
     def check_test_data_against_schema(self, schema_info):
@@ -465,8 +463,6 @@ def main(args):
 
     logging.info('Checking test outputs')
     all_test_out_results = schema_validator.validate_test_output_with_schema()
-    for result in all_test_out_results:
-        logging.debug('  %s', result)
 
     # Check all schema files for correctness.
     schema_errors = schema_validator.check_schema_files()
@@ -477,13 +473,10 @@ def main(args):
 
     logging.info('Checking generated data')
     all_test_data_results = schema_validator.validate_test_data_with_schema()
-    for result in all_test_data_results:
-        logging.debug('  %s', result)
 
     logging.info('Checking test outputs')
     all_test_out_results = schema_validator.validate_test_output_with_schema()
-    for result in all_test_out_results:
-        logging.debug('  %s', result)
+
     return