def validate_uris(value):
 v = RedirectURIValidator(oauth2_settings.ALLOWED_REDIRECT_URI_SCHEMES)
 for uri in value.split():
  v(uri)

def validate_uris ( value ) : v = RedirectURIValidator ( oauth2_settings . ALLOWED_REDIRECT_URI_SCHEMES ) for uri in value . split ( ) : v ( uri )
this validator ensures that value contains valid blank-separated uris" .