If and elif statements not working/not being recognised by python

There are a couple of problems with your code, and I am going to try and address all of them.

The first one has to do with the naming of your variables. You name your functions computer_choice and player_choice, and then check if they equal "rock" or other strings. This is only going to return False because computer_choice is a function, not a string. I would recommend changing the names of your functions to get_computer_choice() and get_player_choice()

Secondly, ps = print('player score: ', player_score). I don't know what you are trying to do there. ps will be None, because print() doesn't return anything.

Third, your functions return themselves.

def my_func():
    return my_func

Will return a function. What you want to do for both of your choice functions is this:

def get_player_choice():
    player_choice = input('Rock, Paper or Scissors? ')
    return player_choice

def get_computer_choice():
    computer_choice = random.choice(options) # Set computer_choice to computers choice
    print(computer_choice)
    return computer_choice

Fourth, under your while loop, you are calling the functions, but aren't doing anything with the returns. Change

while player_score or computer_score < 10:
    player_choice()
    computer_choice()

to

while player_score or computer_score < 10:
    player_choice = get_player_choice()
    computer_choice = get_computer_choice()

Finally, the if ... else statements need to be indented under the while loop, otherwise they never get executed.

Please check the 13th line of your code. I couldn't understand what ps = print(...) means.

There were several issues with your code.

def player_choice():
    input('Rock, Paper or Scissors? ')
    return player_choice

player_choice is not initialised. Input takes the user input, but the result is not stored anywhere.

def get_player_choice():
    choice = input("Rock, Paper or Scissors? ")
    return choice

Same procedure for computer_choice.

Then there is:

ps = print('player score: ', player_score)
cs = print('computer_score: ',computer_score)

I assume you tried to construct a string containing the scores. I suggest

def print_score():
    print('player score: ', player_score)
    print('computer_score: ',computer_score)

instead. You can then call the function whenever you want to see the score.

And finally, the indent was not right for the if-else statements. It should have been in the while loop. Now it just asks the user for input and generates a choice for the computer in an endless loop.

Here are all changes I suggested combined:

import random
player_score = 0
computer_score = 0
options = ['rock', 'paper', 'scissors']

def get_player_choice():
    player_choice= input('Rock, Paper or Scissors? ')
    return player_choice
def get_computer_choice():
    computer_choice = random.choice(options)
    print(computer_choice)
    return computer_choice

def print_score():
    print('player score: ', player_score)
    print('computer_score: ',computer_score)

while player_score < 10  and computer_score < 10:
    player_choice = get_player_choice()
    computer_choice = get_computer_choice()

    if player_choice == 'rock' and  computer_choice == 'rock':
        print('Tie')
    elif player_choice == 'rock' and computer_choice == 'paper':
        print('Computer wins')
        computer_score = computer_score + 1
        print_score()
    elif player_choice == 'rock' and computer_choice == 'scissors':
        print('You win')
        player_score = player_score + 1
        print_score()

A few notes:

1. I changed the name of your functions to avoid a later error when calling them.

2. As suggested in another answers you must pass a variable to store the result from the functions.

3. It was missing indentation

4. Some of your conditions were not right. Such as the while condition: if ((player_score<10) or (computer_score < 10)), even if someone reaches the score of 10, the game will keep going. We don't want that, so it must be the and condition.

Here is the solution:

import random

player_score = 0
computer_score = 0

options = ['rock', 'paper', 'scissors']

def choice_player():
    
    result_player = str((input('rock, paper or scissors? ')))
    return (result_player)

def choice_computer():
    result_computer = random.choice(options)
    return (result_computer)


#---------------------------------------------
ps = print('player score: ', player_score)
cs = print('computer_score: ',computer_score)

while ((player_score<10) and (computer_score < 10)):
    
    player_choice = choice_player()
    computer_choice = choice_computer()

    if ((player_choice == 'rock') and (computer_choice == 'rock')):
        print('Tie')
    elif ((player_choice == 'rock') and (computer_choice == 'paper')):
        print('Computer wins')
        computer_score = computer_score + 1
        print('player score: ', player_score)
        print('computer_score: ',computer_score)
    elif ((player_choice == 'rock') and (computer_choice == 'scissors')):
        print('You win')
        player_score = player_score + 1
        print('player score: ', player_score)
        print('computer_score: ',computer_score)