old_contents: #!/usr/bin/env python3
  # coding=utf-8
  
  import argparse
  import json
  
  import jsonschema
  
  import awp.packager
  import awp.validator
  
  
  # Parse arguments given via command-line interface
  def parse_cli_args():
  
      parser = argparse.ArgumentParser()
      parser.add_argument(
          '--force', '-f', action='store_true',
          help='forces the copying of all files and directories')
      parser.add_argument(
          '--export', '-e', nargs='?', const='', default=None,
          help='exports the installed workflow to the local project directory')
      parser.add_argument(
          '--version', '-v',
          help='the new version number to use for the workflow')
      return parser.parse_args()
  
  
  # Locate and parse the configuration for the utility
  def get_utility_config():
      with open('packager.json', 'r') as config_file:
          return json.load(config_file)
  
  
  def main():
  
      cli_args = parse_cli_args()
      config = get_utility_config()
  
      try:
          awp.validator.validate_config(config)
          awp.packager.package_workflow(
              config,
              version=cli_args.version,
              export_file=cli_args.export,
              force=cli_args.force)
      except jsonschema.exceptions.ValidationError as error:
          print(error.message)
  
  
  if __name__ == '__main__':
      main()
  
new_contents: #!/usr/bin/env python3
  # coding=utf-8
  
  import argparse
  import json
  
  import jsonschema
  
  import awp.packager
  import awp.validator
  
  
  # Parse arguments given via command-line interface
  def parse_cli_args():
  
      parser = argparse.ArgumentParser()
      parser.add_argument(
          '--force', '-f', action='store_true',
          help='forces the copying of all files and directories')
      parser.add_argument(
          '--export', '-e', nargs='?', const='', default=None,
          help='exports the installed workflow to the local project directory')
      parser.add_argument(
          '--version', '-v',
          help='the new version number to use for the workflow')
      return parser.parse_args()
  
  
  # Locate and parse the configuration for the utility
  def get_utility_config():
      with open('packager.json', 'r') as config_file:
          return json.load(config_file)
  
  
  def main():
  
      cli_args = parse_cli_args()
      config = get_utility_config()
  
      try:
          awp.validator.validate_config(config)
          awp.packager.package_workflow(
              config,
              version=cli_args.version,
              export_file=cli_args.export,
              force=cli_args.force)
      except jsonschema.exceptions.ValidationError as error:
          print('awp (from packager.json): {}'.format(error.message))
  
  
  if __name__ == '__main__':
      main()
  
subject: Clarify where packager.json validation error originates