def _get_registry(scope, window=None, tab=None):
 if ((window is not None) and (scope not in ['window', 'tab'])):
  raise TypeError('window is set with scope {}'.format(scope))
 if ((tab is not None) and (scope != 'tab')):
  raise TypeError('tab is set with scope {}'.format(scope))
 if (scope == 'global'):
  return global_registry
 elif (scope == 'tab'):
  return _get_tab_registry(window, tab)
 elif (scope == 'window'):
  return _get_window_registry(window)
 else:
  raise ValueError("Invalid scope '{}'!".format(scope))

def _get_registry ( scope , window = None , tab = None ) : if ( ( window is not None ) and ( scope not in [ 'window' , 'tab' ] ) ) : raise TypeError ( 'window is set with scope {}' . format ( scope ) ) if ( ( tab is not None ) and ( scope != 'tab' ) ) : raise TypeError ( 'tab is set with scope {}' . format ( scope ) ) if ( scope == 'global' ) : return global_registry elif ( scope == 'tab' ) : return _get_tab_registry ( window , tab ) elif ( scope == 'window' ) : return _get_window_registry ( window ) else : raise ValueError ( "Invalid scope '{}'!" . format ( scope ) )
get the correct registry for a given scope .