old_contents: """pydocstyle support."""
  
  from pydocstyle import PEP257Checker
  
  from pylama.lint import Linter as Abstract
  
  
  class Linter(Abstract):
  
      """Check pydocstyle errors."""
  
      @staticmethod
      def run(path, code=None, **meta):
          """pydocstyle code checking.
  
          :return list: List of errors.
          """
          try:
              return [
                  {'lnum': e.line, 'text': e.message, 'type': 'D'}
                  for e in PEP257Checker().check_source(code, path)
              ]
          except AssertionError, e:
              return []
  
new_contents: """pydocstyle support."""
  
  from pydocstyle import PEP257Checker
  
  from pylama.lint import Linter as Abstract
  
  
  class Linter(Abstract):
  
      """Check pydocstyle errors."""
  
      @staticmethod
      def run(path, code=None, **meta):
          """pydocstyle code checking.
  
          :return list: List of errors.
          """
          try:
              return [
                  {'lnum': e.line, 'text': e.message, 'type': 'D'}
                  for e in PEP257Checker().check_source(code, path)
              ]
          except AssertionError:
              return []
  
subject: Fix and close #44