old_contents: import os.path
  import sys
  
  from .loader import Loader, I18nFileLoadError
  
  class PythonLoader(Loader):
      """class to load python files"""
      def __init__(self):
          super(PythonLoader, self).__init__()
  
      def load_file(self, filename):
          path, name = os.path.split(filename)
          module_name, ext = os.path.splitext(name)
          if path not in sys.path:
              sys.path.append(path)
          try:
              return __import__(module_name)
          except ImportError as e:
              raise I18nFileLoadError("error loading file {0}: {1}".format(filename, e.msg))
  
      def parse_file(self, file_content):
          return file_content
  
      def check_data(self, data, root_data):
          return hasattr(data, root_data)
  
      def get_data(self, data, root_data):
          return getattr(data, root_data)
  
new_contents: import os.path
  import sys
  
  from .loader import Loader, I18nFileLoadError
  
  
  class PythonLoader(Loader):
      """class to load python files"""
      def __init__(self):
          super(PythonLoader, self).__init__()
  
      def load_file(self, filename):
          path, name = os.path.split(filename)
          module_name, ext = os.path.splitext(name)
          if path not in sys.path:
              sys.path.append(path)
          try:
              return __import__(module_name)
          except ImportError:
              raise I18nFileLoadError("error loading file {0}".format(filename))
  
      def parse_file(self, file_content):
          return file_content
  
      def check_data(self, data, root_data):
          return hasattr(data, root_data)
  
      def get_data(self, data, root_data):
          return getattr(data, root_data)
  
subject: Fix bug in python loader.