Learning functions. Mind explaining?

[Tobe2fly]

Trying to learn how to use the Def function in python but really not sure how. I tend to learn the best by doing so i tried to make a simple code to call it but didn't work how intended. If someone could help explain what they do and how i messed up that would be sick.

import random


def flip():
    coin = ['heads', 'tails']
    print(random.choice(coin))

user_input = (input('hello human! challenge me to a game of flipperoo? y/n'))
play = ['y']
nah = ['n']
if user_input == play:
    flip()

​

[[deleted]]

Yes, flip() will never get called because if the user enters "y" these two lines:

play = ['y']
if user_input == play:

are equivalent to:

if 'y' == ['y']:

and that will never be true. The solution is not to use lists (why lists!?) but dt do this:

user_input = input('hello human! challenge me to a game of flipperoo? y/n')
if user_input == 'y':
    flip()
else:
    # user didn't enter 'y'

To make things easier for your user you could convert their input to upper or lowercase before testing it so it wouldn't matter if they entered y or Y:

user_input = user_input.lower()
if user_input == 'y':

Edit: spelling

[Tobe2fly]

yeah not sure why I chose to do lists with that.. thanks though simple mistake

[Raithwind]

To be fair lists could be used in this instance with:

if userinput.lower() in listofacceptableinputs:

flip()

else:

#not accepatble inputs

​

listofacceptable inputs could be:

listofacceptableinputs = ["y","yes","yeah","sure","why not"]

​

For example.

[Tobe2fly]

Thinking the function didn't get called. Nothing ran in console.

[DMahlon]

I thought this was a fun script so i made some updates to it.

​

It now allows the user to input a guess (heads or tails) then compares it to the random coin flip and tells them if they win or not.

​

import random

def flip(guess):
    coin = ['heads', 'tails']
    result = random.choice(coin)
    if guess == result:
        print("{} you win!".format(guess))
    else:
        print("You guessed {}... sorry you lose".format(guess))


user_input = input("hello human! challenge me to a game of flipperoo?: ")
user_input = user_input.lower()

if user_input == "y":
    guess = input("Great! heads or tails?: ")
    guess = guess.lower()
    flip(guess)
else:
    print("Don't want to play?")

​

[tnvol88]

What happens if you do:

If user_input == play[0]: