old_contents: from __future__ import unicode_literals
  
  import os
  
  from mopidy import config, exceptions, ext
  
  
  __version__ = '0.2.2'
  
  
  class GMusicExtension(ext.Extension):
  
      dist_name = 'Mopidy-GMusic'
      ext_name = 'gmusic'
      version = __version__
  
      def get_default_config(self):
          conf_file = os.path.join(os.path.dirname(__file__), 'ext.conf')
          return config.read(conf_file)
  
      def get_config_schema(self):
          schema = super(GMusicExtension, self).get_config_schema()
          schema['username'] = config.String()
          schema['password'] = config.Secret()
          schema['deviceid'] = config.String(optional=True)
          return schema
  
      def validate_environment(self):
          try:
              import gmusicapi  # noqa
          except ImportError as e:
              raise exceptions.ExtensionError('gmusicapi library not found', e)
          pass
  
      def get_backend_classes(self):
          from .actor import GMusicBackend
          return [GMusicBackend]
  
new_contents: from __future__ import unicode_literals
  
  import os
  
  from mopidy import config, ext
  
  
  __version__ = '0.2.2'
  
  
  class GMusicExtension(ext.Extension):
  
      dist_name = 'Mopidy-GMusic'
      ext_name = 'gmusic'
      version = __version__
  
      def get_default_config(self):
          conf_file = os.path.join(os.path.dirname(__file__), 'ext.conf')
          return config.read(conf_file)
  
      def get_config_schema(self):
          schema = super(GMusicExtension, self).get_config_schema()
          schema['username'] = config.String()
          schema['password'] = config.Secret()
          schema['deviceid'] = config.String(optional=True)
          return schema
  
      def get_backend_classes(self):
          from .actor import GMusicBackend
          return [GMusicBackend]
  
subject: Remove dependency check done by Mopidy