Checking if index in a string is a certain letter

Question

I want to make a list, that contains indices, that tell me where in a string a certain character is.

So far i have this:

def function(string):
    a = []
    for i in string:
        if string[i] == '*':
           a.append(i)

and i get an error: string indices must be integers.

I searched how to fix this, but couldn't find any suitable answers.

Answer 1

So remember that when you loop over an iterator the value of i takes on each element in the iterable.

So if we had:

for i in "Hello":
     print(i)

Then we would get "H", "e", "l", "l", "o".

These strings cannot be used to index a string. Instead compare i directly with *

def function(string):
    a = []
    for index, character in enumerate(string):
        if character == '*':
           a.append(index)

The enumerate function counts each iteration