fix: update csv import error messages

update csv error according discussed

Ticket[au-66]

version bump

update changelog

CHANGELOG.rst

@@ -12,6 +12,8 @@ Change Log
 .. There should always be an "Unreleased" section for changes pending release.
 
 Unreleased
+[0.8.14] - 2021-07-12
+* Update csv import error message
 ~~~~~~~~~~
 [0.8.13] - 2021-07-12
 * Fix bug where we ignore repeat user in the csv import

bulk_grades/__init__.py

@@ -2,6 +2,6 @@
 Support for bulk scoring and grading.
 """
 
-__version__ = '0.8.13'
+__version__ = '0.8.14'
 
 default_app_config = 'bulk_grades.apps.BulkGradesConfig'  # pylint: disable=invalid-name

bulk_grades/views.py

@@ -91,8 +91,13 @@ def post(self, request, course_id, *args, **kwargs):
             data = self.processor.status()
             data['error_messages'] = []
             for error_message in self.processor.error_messages:
-                line_numbers = ', #'.join(str(line_number+1) for line_number in self.processor.error_messages[error_message])
-                data['error_messages'].append(f'{error_message} on lines (#{line_numbers})')
+                line_numbers = ', '.join(str(line_number+1) for line_number in self.processor.error_messages[error_message])
+                new_message = '{error_message} on line{is_plural} {line_numbers}'.format(
+                                    error_message=error_message,
+                                    is_plural='s' if len(line_numbers) > 1 else '',
+                                    line_numbers=line_numbers
+                                )
+                data['error_messages'].append(new_message)
 
             log.info('Processed file %s for %s -> %s saved, %s processed, %s error. (async=%s)',
                      the_file.name,