Pygame is not displaying a grid or fps counter - python-3.x

Question

I am trying to make a rpg but i always get the issue when pygame dose not display I am using a youtube video to help my make this rpg but Its just not working the creator made a color module to help but it just dose not work I know there are better ways of making a fps counter feel free to improve it
import pygame, sys, time
from Scripts.UltraColor import *
pygame.init()
cSec = 0
cFrame = 0
FPS = 0
tile_size = 32
fps_font = pygame.font.Font("C:\\Windows\\Fonts\\Verdana.ttf", 20)
def show_fps():
fps_overlay = fps_font.render(str(FPS), True, Color.Goldenrod)
window.blit(fps_overlay, (0,0))
def create_window():
global window, window_height, window_width, window_title
window_width, window_hight = 800, 600
window_title = "RPG"
pygame.display.set_caption(window_title)
window = pygame.display.set_mode((window_width, window_hight), pygame.HWSURFACE|pygame.DOUBLEBUF)
def count_fps():
global cSec, cFrame, FPS
if cSec == time.strftime("%S"):
cFrame += 1
else:
FPS = cFrame
cFrame = 0
cSec = time.strftime("%S")
create_window()
isRunning = True
while isRunning:
for event in pygame.event.get():
if event.type == pygame.QUIT:
isRunning = False
# LOGIC
count_fps()
# Render Graphics
window.fill(Color.Black)
# - Render Sinple Terrain Grid
for x in range(0, 640, tile_size):
for y in range(0, 480, tile_size):
pygame.draw.rect(window, Color.White, (x, y, tile_size + 1, tile_size + 1), 1)
show_fps()
pygame.display.update
pygame.quit()
sys.exit()

Answer 1

You need to add parentheses behind pygame.display.update to call this function and update the display: pygame.display.update()
I also recommend to use a pygame.time.Clock to limit the frame rate and get the fps. Calling clock.tick(FPS) makes sure that the game doesn't run faster than this frame rate. In the show_fps function you can just call clock.get_fps() to get the current frame rate.
import pygame
def show_fps(window, clock):
fps_overlay = FPS_FONT.render(str(clock.get_fps()), True, GOLDENROD)
window.blit(fps_overlay, (0, 0))
pygame.init()
FPS_FONT = pygame.font.SysFont("Verdana", 20)
GOLDENROD = pygame.Color("goldenrod")
tile_size = 32
window = pygame.display.set_mode((800, 600), pygame.HWSURFACE|pygame.DOUBLEBUF)
clock = pygame.time.Clock()
FPS = 60
isRunning = True
while isRunning:
for event in pygame.event.get():
if event.type == pygame.QUIT:
isRunning = False
# Render Graphics
window.fill((50, 50, 50))
# Render Simple Terrain Grid
for x in range(0, 640, tile_size):
for y in range(0, 480, tile_size):
pygame.draw.rect(
window, (255, 255, 255),
(x, y, tile_size+1, tile_size+1), 1)
show_fps(window, clock)
clock.tick(FPS)
pygame.display.update()
pygame.quit()