python - Could not open resource file, pygame error: "FileNotFoundError: No such file or directory."

Question

Import pygame

pygame.init()

BG = pygame.image.load('_pycache_/test_bg.jpg')

def DrawGameWin():
    window.blit(BG,(0,0))

pygame.display.update()


DrawGameWin()

Answer 1

The resource (image, font, sound, etc.) file path has to be relative to the current working directory. The working directory is possibly different to the directory of the python file.

The name and path of the file can be get by __file__. The current working directory can be get by os.getcwd() and can be changed by os.chdir(path).

One solution is to change the working directory:

import os

sourceFileDir = os.path.dirname(os.path.abspath(__file__))
os.chdir(sourceFileDir)

An alternative solution is to find the absolute path. If the file is in an subfolder of the python file (or even in the same folder), then you can get the directory of the file and join (os.path.join()) the relative filepath. e.g.:

import pygame
import os

# get the directory of this file
sourceFileDir = os.path.dirname(os.path.abspath(__file__))

# [...]

# join the filepath and the filename
filePath = os.path.join(sourceFileDir, 'test_bg.jpg')
# filePath = os.path.join(sourceFileDir, '_pycache_/test_bg.jpg')

surface = pygame.image.load(filePath)