Skier game Program in Atom with Python

Helloo,

I want to run Skier Game Program in Atom. But it cannot run in Ätom.
I also run in Python IDE, but it running perfectly.

Why it cannot run in atom?

pygame 1.9.4
Hello from the pygame community. https://www.pygame.org/contribute.html
Traceback (most recent call last):
File “D:\my_exercise_programming\python_workspace\skier\skier.py”, line 100, in
skier = SkierClass()
File “D:\my_exercise_programming\python_workspace\skier\skier.py”, line 25, in init
self.image = pygame.image.load(“skier_down.png”)
pygame.error: Couldn’t open skier_down.png
[Finished in 1.917s]