python - Why is Pygame's KMOD_SHIFT unresolved and crashing my code? -

i wrote simple program test detection of shift key being pressed, think ought work. main issue seems kmod_shift piece. searched out shift detection using pygame , test pygame.key.get_mods() & kmod_shift people said use, , in several code example well. however, in code warning kmod_shift unresolved reference, , when try run code, press key error: "name kmod_shift undefined".

isn't pygame supposed define it? in other people's code examples of using this, seem using same me. doing wrong here?

still major python newbie - guidance.

#! /usr/bin/python3  import pygame  pygame.init() screen_width, screen_height = 800, 600 screen_color = [128, 128, 128]  game_display = pygame.display.set_mode((screen_width, screen_height)) pygame.display.set_caption('coloriffic') clock = pygame.time.clock()  my_font = pygame.font.sysfont("monospace", 45)  crashed = false shift_label = my_font.render("shift not pressed", 1, (0, 0, 0))  while not crashed:     event in pygame.event.get():         if event.type == pygame.quit:             crashed = true         if event.type == pygame.keydown:             if pygame.key.get_mods() & kmod_shift: # problem line                 shift_label = my_font.render("shift pressed", 1, (0, 0, 0))             else:                 shift_label = my_font.render("shift not pressed", 1, (0, 0, 0))      game_display.fill(screen_color)     game_display.blit(shift_label, (100, 100))      pygame.display.update()     clock.tick(60)  pygame.quit() quit() 

nevermind, seems if use pygame.kmod_shift works fine. don't know why other people didn't have put "pygame." in front, maybe imported pygame differently did.

false alarm, apologies.