Unable to return variable from one function and use it in another function

I am attempting to return a list of coins from one function to another, then split it and sum the results. I’m trying to return one list from a function, then use it in the next. I put the list in as a positional argument in the main function, but it says it isn’t defined. I have a return statement in the function, so I’m not sure what’s wrong.

import random
import time
import math



CORRECT_LIST = ['Great job!', 'You did it!', 'Right answer.', 'Awesome!']
INCORRECT_LIST = ['Not quite.', 'Try again.', 'Keep trying.', 'Check your math.']


#Controls all other functions
def main():

    choose_coins()
    coin_tokens = choose_coins()

#Choose the number and type of coins
def choose_coins():

    coin_tokens = []

    #List of coins to pick from
    coin_list = ['Penny', 'Nickel', 'Dime', 'Quarter']
    
    #Choose the number of coins
    num_coins = random.randint(2,4)

    #Add chosen coins to a list
    for i in range(num_coins):


        coins_to_be_counted = random.choice(coin_list)

        coin_tokens.append(coins_to_be_counted)

   
    print(coin_tokens)

    return coin_tokens


    


#Add coins using tokens from coin_tokens list
def add_coins(coin_tokens):


    #Iterate through coin_tokens list
    for i in coin_tokens:

        if token == 'Penny':
            coin_total += 1

        elif token == 'Nickel':
            coin_total += 5

        elif token == 'Dime':
            coin_total += 10
    
        elif token == 'Quarter':
            coin_total += 25

        coin_total = 0
        
    print(coin_total)



#Starts the Program
if __name__ == "__main__":
    main()

>Solution :

You have made a lot of minor errors. For instance, using ‘i’ in the for loop but checking condition on a undefined variable ‘token’, calling a function with return value and not assigning a variable for it.

Please check the following code. I have made a changes, it should work now.

import random
import time
import math

CORRECT_LIST = ['Great job!', 'You did it!', 'Right answer.', 'Awesome!']
INCORRECT_LIST = ['Not quite.', 'Try again.', 'Keep trying.', 'Check your math.']


#Controls all other functions
def main():

    coins = choose_coins()
    add_coins(coins)

    
#Choose the number and type of coins
def choose_coins():
    coin_tokens = []
    #List of coins to pick from
    coin_list = ['Penny', 'Nickel', 'Dime', 'Quarter']
    #Choose the number of coins
    num_coins = random.randint(2,4)
    #Add chosen coins to a list
    for i in range(num_coins):
        coins_to_be_counted = random.choice(coin_list)
        coin_tokens.append(coins_to_be_counted)
    print(coin_tokens)
    
    return coin_tokens

#Add coins using tokens from coin_tokens list
def add_coins(coin_tokens):
    coin_total = 0
    for token in coin_tokens:
        if token == 'Penny':
            coin_total += 1
        elif token == 'Nickel':
            coin_total += 5
        elif token == 'Dime':
            coin_total += 10
        elif token == 'Quarter':
            coin_total += 25
            
    print(coin_total)
    


#Starts the Program
if __name__ == "__main__":
    main()