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Python Python Basics (2015) Letter Game App Random Item

oliverchou
oliverchou
20,886 Points
Posted by oliverchou
oliverchou
20,886 Points

I couldn't get this right!

Is there anything wrong in my code? I've paused learning python for a while and I just couldn't fix the error. Anyone can help?

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

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

3 Answers

Thomas Fildes
Thomas Fildes
22,687 Points
Thomas Fildes
Thomas Fildes
22,687 Points

Hi Oliver,

You have nearly got it right the only thing that you need to do is change the parenthesis and brackets. Here is following code below if unsure:

import random

def random_item(x):
  return x [random.randint(0, len(x)-1) ]
oliverchou
oliverchou
20,886 Points
oliverchou
oliverchou
20,886 Points

but why is there a space between the "x" and the "[]" on the 4th line?

Shahar Rosen
Shahar Rosen
18,957 Points
Shahar Rosen
Shahar Rosen
18,957 Points

When calling "len" function on x you use square brackets - len[x]. use len(x) instead...

Alexander Kobilinsky
Alexander Kobilinsky
359 Points
Alexander Kobilinsky
Alexander Kobilinsky
359 Points

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