old_contents: # -*- coding: utf-8 -*-
  """pep257 docstrings convention needs error code and class parser for be
  included as module into flake8
  """
  import io
  
  import pep8
  import pep257
  
  __version__ = '0.2.2'
  
  
  class pep257Checker(object):
  
      """flake8 needs a class to check python file."""
  
      name = 'pep257'
      version = __version__
  
      STDIN_NAMES = set(['stdin', '-', '(none)', None])
  
      def __init__(self, tree, filename='(none)', builtins=None):
          self.tree = tree
          self.filename = filename
          self.source = self.load_source()
          self.checker = pep257.PEP257Checker()
  
      def run(self):
          """Use directly check() api from pep257."""
          for error in self.checker.check_source(self.source, self.filename):
              # Ignore AllError, Environment error.
              if isinstance(error, pep257.Error):
                  # NOTE(sigmavirus24): Fixes GitLab#3
                  message = '%s %s' % (error.code, error.short_desc)
                  yield (error.line, 0, message, type(self))
  
      def load_source(self):
          if self.filename in self.STDIN_NAMES:
              self.filename = 'stdin'
              self.source = pep8.stdin_get_value()
          else:
              with io.open(self.filename, encoding='utf-8') as fd:
                  self.source = fd.read()
  
new_contents: # -*- coding: utf-8 -*-
  """Implementation of pep257 integration with Flake8.
  
  pep257 docstrings convention needs error code and class parser for be
  included as module into flake8
  """
  import io
  
  import pep8
  import pep257
  
  __version__ = '0.2.2'
  
  
  class pep257Checker(object):
      """Flake8 needs a class to check python file."""
  
      name = 'flake8-docstrings'
      version = __version__ + ', pep257: {0}'.format(pep257.__version__)
  
      STDIN_NAMES = set(['stdin', '-', '(none)', None])
  
      def __init__(self, tree, filename='(none)', builtins=None):
          """Placeholder."""
          self.tree = tree
          self.filename = filename
          self.source = self.load_source()
          self.checker = pep257.PEP257Checker()
  
      def run(self):
          """Use directly check() api from pep257."""
          for error in self.checker.check_source(self.source, self.filename):
              # Ignore AllError, Environment error.
              if isinstance(error, pep257.Error):
                  # NOTE(sigmavirus24): Fixes GitLab#3
                  message = '%s %s' % (error.code, error.short_desc)
                  yield (error.line, 0, message, type(self))
  
      def load_source(self):
          """Load the source for the specified file."""
          if self.filename in self.STDIN_NAMES:
              self.filename = 'stdin'
              self.source = pep8.stdin_get_value()
          else:
              with io.open(self.filename, encoding='utf-8') as fd:
                  self.source = fd.read()
  
subject: Fix up a couple of minor issues