Question

In PS4 problem 3 I started out with this:

count = 0
while count < len(shifts):
for char in text:
location = shifts[count][0]
if text.index(char) >= location:

but when I run it, it says substring not found for location in my if statement. However, if I simply print location it does so with no problems. Why is it not able to find it then in the conditional?

Answer 1

This means that in text.index(char), char was not in text, and so it raised an exception.

Answer 2

text.index(char) searches for char in text. If char is in text, it returns that index. Else, it raises an error.

Answer 3

Ok thank you, I switched it to text.find(char). I thought that text.index would work because I was inside a for loop for char in text, so I thought all of the char would be found

Answer 4

Welcome.