code: def check_pep8(filename, **kwargs):
      
      options = {
          "ignore": kwargs.get("ignore"),
          "select": kwargs.get("select"),
      }
  
      if not _registered_pyflakes_check and kwargs.get("pyflakes", True):
          _register_pyflakes_check()
  
      checker = pep8.Checker(filename, reporter=_Report, **options)
      checker.check_all()
  
      errors = []
      for error in sorted(checker.report.errors, key=lambda x: x[0]):
          errors.append("{0}:{1}: {3}".format(*error))
      return errors
docs: Perform static analysis on the given file.
  
      :param filename: path of file to check.
      :type filename: str
      :param ignore: codes to ignore, e.g. ``('E111', 'E123')``
      :type ignore: `list`
      :param select: codes to explicitly select.
      :type select: `list`
      :param pyflakes: run the pyflakes checks too (default ``True``)
      :type pyflakes: bool
      :return: errors
      :rtype: `list`
  
      .. seealso:: :py:class:`pycodestyle.Checker`