old_contents: import inspect
  import os
  import glob
  import logging
  
  
  class BaseImporter(object):
  
      def log(self, message):
          logging.debug(message)
  
      def match(self, filepath):
          """Return True if file for filepath parseable by importer
          """
          raise NotImplementedError('Handle should be implemented by base class')
  
      def handle(self, filepath):
          """Return all credentials decrypted from filepath
          """
          raise NotImplementedError('Handle should be implemented by base class')
  
  
  __all__ = [os.path.basename(f)[:-3]
             for f in glob.glob(os.path.dirname(__file__) + "/*.py")]
  
  
  def _import_all_importer_files():
      __import__(__name__, globals(), locals(), __all__, 0)
  
  
  def get_all():
      """Get all subclasses of BaseImporter from module and return and generator
      """
  
      _import_all_importer_files()
  
      for module in (value for key, value in globals().items() if key in __all__):
          for klass_name, klass in inspect.getmembers(module, inspect.isclass):
              if klass is not BaseImporter and issubclass(klass, BaseImporter):
                  yield klass
  
  
  def get_instances():
      """Get instances of all found detected importer classes"""
      return (wclass() for wclass in get_all())
  
  
  def find_importer(filepath):
      for importer in get_instances():
          if importer.match(filepath):
              return importer
  
new_contents: import inspect
  import os
  import glob
  import logging
  
  
  class BaseImporter(object):
  
      def log(self, message):
          logging.debug(message)
  
      def match(self, filepath):
          """Return True if file for filepath parseable by importer
          """
          raise NotImplementedError('Handle should be implemented by base class')
  
      def handle(self, filepath):
          """Return all credentials decrypted from filepath
          """
          raise NotImplementedError('Handle should be implemented by base class')
  
  
  __all__ = [os.path.basename(f)[:-3]
             for f in glob.glob(os.path.dirname(__file__) + "/*.py")]
  
  
  def _import_all_importer_files():
      __import__(__name__, globals(), locals(), __all__, 0)
  
  
  def get_all():
      """Get all subclasses of BaseImporter from module and return and generator
      """
  
      _import_all_importer_files()
  
      for module in (value for key, value in globals().items()
                     if key in __all__):
          for klass_name, klass in inspect.getmembers(module, inspect.isclass):
              if klass is not BaseImporter and issubclass(klass, BaseImporter):
                  yield klass
  
  
  def get_instances():
      """Get instances of all found detected importer classes"""
      return (wclass() for wclass in get_all())
  
  
  def find_importer(filepath):
      for importer in get_instances():
          if importer.match(filepath):
              return importer
  
subject: Clean importers