taskqueue.py 文件源码

def __target_from_host(host):
    """Calculate the value of the target parameter from a host header.

    Args:
      host: A string representing the hostname for this task.

    Returns:
      A string containing the target of this task, or the constant
      DEFAULT_APP_VERSION if it is the default version.

      If this code is running in a unit-test where the environment variable
      `DEFAULT_VERSION_HOSTNAME' is not set then the constant
      _UNKNOWN_APP_VERSION is returned.
    """
    default_hostname = app_identity.get_default_version_hostname()
    if default_hostname is None:



      return _UNKNOWN_APP_VERSION

    if host.endswith(default_hostname):

      version_name = host[:-(len(default_hostname) + 1)]
      if version_name:
        return version_name





    return DEFAULT_APP_VERSION