old_contents: import pathlib
  
  from mopidy import config, ext
  
  __version__ = "1.2.1"
  
  
  class Extension(ext.Extension):
  
      dist_name = "Mopidy-Scrobbler"
      ext_name = "scrobbler"
      version = __version__
  
      def get_default_config(self):
          return config.read(pathlib.Path(__file__).parent / "ext.conf")
  
      def get_config_schema(self):
          schema = super().get_config_schema()
          schema["username"] = config.String()
          schema["password"] = config.Secret()
          return schema
  
      def setup(self, registry):
          from .frontend import ScrobblerFrontend
  
          registry.add("frontend", ScrobblerFrontend)
  
new_contents: import pathlib
  
  import pkg_resources
  
  from mopidy import config, ext
  
  __version__ = pkg_resources.get_distribution("Mopidy-Scrobbler").version
  
  
  class Extension(ext.Extension):
  
      dist_name = "Mopidy-Scrobbler"
      ext_name = "scrobbler"
      version = __version__
  
      def get_default_config(self):
          return config.read(pathlib.Path(__file__).parent / "ext.conf")
  
      def get_config_schema(self):
          schema = super().get_config_schema()
          schema["username"] = config.String()
          schema["password"] = config.Secret()
          return schema
  
      def setup(self, registry):
          from .frontend import ScrobblerFrontend
  
          registry.add("frontend", ScrobblerFrontend)
  
subject: Use pkg_resources to read version