I have made a game with pygame, where I used random module to choose a random variables from a list, but somehow the same variable  is getting chosen. 

Do someone knows anything about this,?

Showing your code would help. And what do you mean, choosing a variable?

You probably haven’t seeded your RNG. Do random.seed() when you first launch the game.

As @notimetoplay says, it's best if you show some code, but one way to select a random item within a list is with "choice"

import random  
foo = ['a', 'b', 'c', 'd', 'e'] 
print(random.choice(foo))

Yea, it's working now! 

Thank you hechelion, for your advice.