Guided prison break. why it keep saying data undefined?

i copied and pasted the solution to on guided project page 5 and it keeps saying data is undefined.
from helper import *
url = “List of helicopter prison escapes - Wikipedia
data = data_from_url(url)
for row in data[:3]:

Hi @polkjervonte

Welcome to DQ community.
Could you please share the ipynb file of your code so far. Or else copy paste your code along with the error message? This will help us to help you faster.

Also please have a look at this guidelines for asking technical questions which will help you to get help quicker.