old_contents: import gmusicapi
  from mopidy import commands
  from oauth2client.client import OAuth2WebServerFlow
  
  
  class GMusicCommand(commands.Command):
      def __init__(self):
          super().__init__()
          self.add_child("login", LoginCommand())
  
  
  class LoginCommand(commands.Command):
      def run(self, args, config):
          oauth_info = gmusicapi.Mobileclient._session_class.oauth
          flow = OAuth2WebServerFlow(**oauth_info._asdict())
          print()
          print(
              "Go to the following URL to get an initial auth code, then "
              + "provide it below: "
              + flow.step1_get_authorize_url()
          )
          print()
          try:
              initial_code = raw_input("code: ")
          except NameError:
              # Python 3
              initial_code = input("code: ")
          credentials = flow.step2_exchange(initial_code)
          refresh_token = credentials.refresh_token
          print("\nPlease update your config to include the following:")
          print()
          print("[gmusic]")
          print("refresh_token =", refresh_token)
          print()
  
new_contents: import gmusicapi
  from mopidy import commands
  from oauth2client.client import OAuth2WebServerFlow
  
  
  class GMusicCommand(commands.Command):
      def __init__(self):
          super().__init__()
          self.add_child("login", LoginCommand())
  
  
  class LoginCommand(commands.Command):
      def run(self, args, config):
          oauth_info = gmusicapi.Mobileclient._session_class.oauth
          flow = OAuth2WebServerFlow(**oauth_info._asdict())
          print()
          print(
              "Go to the following URL to get an initial auth code, "
              "then provide it below:"
          )
          print(flow.step1_get_authorize_url())
          print()
          initial_code = input("code: ")
          credentials = flow.step2_exchange(initial_code)
          refresh_token = credentials.refresh_token
          print("\nPlease update your config to include the following:")
          print()
          print("[gmusic]")
          print("refresh_token =", refresh_token)
          print()
  
subject: Remove Python 2 compatibility code