“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte

Question

Here is my code,

for line in open(\'u.item\'):
#read each line

whenever I run this code it gives the following error:

Answer 1

As suggested by Mark Ransom, I found the right encoding for that problem. The encoding was "ISO-8859-1", so replacing open("u.item", encoding="utf-8") with open('u.item', encoding = "ISO-8859-1") will solve the problem.