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Python Python Basics (2015) Letter Game App Random Item

Idan shami
Idan shami
13,251 Points
Posted by Idan shami
Idan shami
13,251 Points

random item

I stuck in this challenge... I don't know what to do please help

thank you.

item.py 
# EXAMPLE
# random_item("Treehouse")
# The randomly selected number is 4.
# The return value would be "h"
import random
def random_item(arg):

1 Answer

dojewqveaq
dojewqveaq
11,393 Points
dojewqveaq
dojewqveaq
11,393 Points

Hey Idan,

so far you are doing great. Now you have to make a random number that is between 0 and the length of the "arg" argument you passed to your function. You can create a new variable for that, I'll call it "num".

num = random.randint(0, len(arg) -1)

That code will give you a random number. Now, remember that strings are iterable, so you can call any letter of any string by it's index using String[index]. Here is how it works;

my_name = "Eric"
print(my_name[0]) # This will print out the letter E (remember that the first item is 0 indexed)
your_name = "Idan"
print(your_name[2]) # This will print out the letter U

So your code would look something like this:

import random

def random_item(arg):
    num = random.randint(0, len(arg) - 1)
    return arg[num]